In a grocery store, Julia bought 2 pieces of Snickers and 3 packs of M&M's. If each piece of Snickers costs $1.5 and a pack of M&M's has the same cost as 2 Snickers, how much is Julia's change if she gave the cashier 2 $10 bills?

Two pieces of snickers cost $1.5 x 2 = $

<<1.5*2=3>>3. One pack of M&M's costs $3 so 3 packs cost $3 x 3 = $<<3*3=9>>9. The total amount that she needs to pay is $3 + $9 = $<<3+9=12>>12. Julia gave the cashier $10 x 2 = $<<10*2=20>>20. So, her change is $20 - $12 = $<<20-12=8>>8. #### 8 James spends 10 minutes downloading a game, half as long installing it, and triple that combined amount of time going through the tutorial. How long does it take before he can play the main game? First divide the download time in half to find the install time: 10 minutes / 2 = <<10/2=5>>5 minutes Then add that amount of time to the download time: 5 minutes + 10 minutes = <<5+10=15>>15 minutes Then triple that amount of time to find the tutorial time: 15 minutes * 3 = <<15*3=45>>45 minutes Then add that time to the install and downtime time to find the total time: 45 minutes + 15 minutes = <<45+15=60>>60 minutes #### 60 From his apartment, Kona drives 9 miles to the bakery. From there, he drives 24 miles to his grandmother’s house. From her house, he drives 27 miles straight to his apartment. How many additional miles did Kona drive round trip to the bakery stop, compared to a round trip without the bakery stop? With the bakery stop, Kona drove a total of 9 + 24 + 27 = <<9+24+27=60>>60 miles. Without the bakery stop, Kona drove a total of 27 + 27 = <<27+27=54>>54 miles. With the bakery stop, Kona drives an additional 60 - 54 = <<60-54=6>>6 miles. #### 6 Tina decides to fill a jar with coins. In the first hour she puts in 20 coins. During the next two hours she puts in 30 coins each time. During the fourth hour she puts in 40 coins. During the fifth hour her mother asks to borrow some money so she takes 20 coins out. How many coins are left after the fifth hour? There are 20 coins during the first hour. 30 coins are added during the second and third hours and 40 coins are added during the fourth hour. By the fourth hour there are 20+30+30+40 =<<20+30+30+40=120>>120 coins The number of coins after giving 20 to her mother is 120-20=<<120-20=100>>100 #### 100 Miles and Daphne are comparing their reading collection and want to figure out who has more pages. They are about to count each page, but their parents suggest that they see whose collection is taller. Mile's collection is taller, but then Daphne notices that Miles reads board books, and so the pages are thicker. After some more measuring, they figure out that for Miles, 1 inch equals 5 pages, but for Daphne 1 inch equals 50 pages. If Miles's books are 240 inches tall and Daphne's collection is 25 inches tall, how many pages are in the longest collection? Miles's collection has 1,200 pages because 240 x 5 = <<240*5=1200>>1,200 Daphne's collection has 1,250 pages because 25 x 50 = <<25*50=1250>>1,250 The largest collection has 1,250 pages because 1,250 > 1,200 #### 1250 For his birthday, Aku invited 4 friends. His mother bought 3 packages of cookies each containing 25 cookies. After playing football, the children came to eat and celebrate Aku's 10th birthday, each eating an equal number of all the cookies. Calculate the number of cookies that each child will eat. Let’s first calculate the total number of cookies: 25 X 3 = 75 cookies Let us now share these cookies among the 5 children: 75 / 5 =<<75/5=15>>15 cookies #### 15 Rodney is a door-to-door salesman trying to sell home security systems. He gets a commission of $25 for each system he sells. He is canvassing a neighborhood of four streets with eight houses each. The first street gave him half the sales that the second street did, while every house on the third street turned him away and the fourth street resulted in only one sale. His total commission was $175. How many security systems did he sell on the second street? Let S be the number of systems Rodney sold on the first street. He sold 2S systems on the second street. Based on his commission, he sold 175 / 25 = <<175/25=7>>7 systems. In all, he sold S + 2S + 0 + 1 = 3S + 1 = 7 systems. On the first and second streets, he sold 3S = 7 - 1 = 6 systems. Thus, on the first street he sold S = 6 / 3 = <<6/3=2>>2 systems. On the second street, Rodney sold 2 * 2 = <<2*2=4>>4 security systems. #### 4 Two friends are racing three miles. The first one runs it in 21 minutes. The second one runs it in 24 minutes. If they keep up the same pace, how long combined will it take for them to run 5 miles each? The first one runs a mile in 7 minutes because 21 / 3 = <<21/3=7>>7 The second runs a mile in 8 minutes because 24 / 3 = <<24/3=8>>8 The first one would finish 5 miles in 35 minutes because 5 x 7 = <<5*7=35>>35 The second one would finish in 40 minutes because 5 x 8 = <<5*8=40>>40 It will take 75 minutes in total because 35 + 40 = <<35+40=75>>75 #### 75 Brandon has been fired from half the businesses in town and has quit from a third of them. If there are 72 business in town, how many businesses can he still apply to? First divide the total number of businesses by 2 to find how many businesses Brandon hasn't been fired from: 72 businesses / 2 = <<72/2=36>>36 businesses Then divide the total number of businesses by 3 to find how many businesses Brandon quit from: 72 businesses / 3 = <<72/3=24>>24 businesses Then subtract that number from the number of businesses he hasn't been fired from to find the number of businesses where he can still apply: 36 businesses - 24 businesses = <<36-24=12>>12 businesses #### 12 A class of 12 students was about to share 108 oranges equally among themselves when it was discovered that 36 of the oranges were bad and had to be thrown away. How many oranges less will each student get now than if no orange had to be thrown away? If the 12 students had shared the 108 oranges, each student would have gotten 108/12 = <<108/12=9>>9 oranges But 36 were removed so there are 108-36 = <<108-36=72>>72 oranges left So 12 shared 72 for each to get 72/12 = <<72/12=6>>6 oranges This is 9-6 = <<9-6=3>>3 less than they would each get if they did not have to throw any orange away. #### 3