Cappuccinos cost $2, iced teas cost $3, cafe lattes cost $1.5 and espressos cost $1 each. Sandy orders some drinks for herself and some friends. She orders three cappuccinos, two iced teas, two cafe lattes, and two espressos. How much change does she receive back for a twenty-dollar bill?

Find the total cost of the cappuccinos by multiplying the price by the quantity: 3 cappuccinos x $2/cappuccino = $

<<3*2=6>>6 Then do the same for the iced teas: 2 iced teas x $3/tea = $<<2*3=6>>6 Then do the same for the cafe lattes: 2 lattes x $1.5/latte = $<<2*1.5=3>>3 Then do the same for the espressos: 2 espressos x $1 = $<<2*1=2>>2 In total Sandy pays $6 + $6 + $3 + $2 = $<<6+6+3+2=17>>17 Sandy will receive $20 - $17 = $<<20-17=3>>3 in change #### 3 Alex gets paid $500 a week and 10% of his weekly income is deducted as tax. He also pays his weekly water bill for $55 and gives away another 10% of his weekly income as a tithe. How much money does Alex have left? His income tax is 10% of 500 which is 500*10% = $<<500*10*.01=50>>50. His tithe costs 10% of $500 which is 500*10% = $<<500*10*.01=50>>50. The total expenses are 50 + 55 + 50 = $155 He is then left with $500 - $ 155= $<<500-155=345>>345. #### 345 Ivan has a bird feeder in his yard that holds two cups of birdseed. Every week, he has to refill the emptied feeder. Each cup of birdseed can feed fourteen birds, but Ivan is constantly chasing away a hungry squirrel that steals half a cup of birdseed from the feeder every week. How many birds does Ivan’s bird feeder feed weekly? The squirrel steals 1/2 cup of birdseed every week, so the birds eat 2 - 1/2 = 1 1/2 cups of birdseed. Each cup feeds 14 birds, so Ivan’s bird feeder feeds 14 * 1 1/2 = 21 birds weekly. #### 21 An elementary school teacher is making Halloween goodie bags for her class. She wants the bags to be personalized, so she surveys her students asking whether they'd like a vampire-themed bag or a pumpkin-themed bag. Of her 25 students, 11 indicate they want the vampire-themed bag and 14 indicate they want the pumpkin-themed bag. The store the teacher shops at sells packs of 5 of each theme at a price of $3 per package, as well as individual bags of each theme at a price of $1 each. What is the least amount of money the teacher can spend on the bags if she buys every student the theme they requested? Because it is cheaper to buy the packs of 5, the teacher should satisfy the 11 students who want the vampire theme with 2 packs of 5 and 1 individual bag. This will cost the teacher 2*3 + 1*1 = $<<2*3+1*1=7>>7. Similarly, the 14 students who want a pumpkin-themed bag can be satisfied by 2 packs of 5 and 4 individual bags at a cost of 2*3 + 4*1 = $<<2*3+4*1=10>>10. Therefore, the teacher must spend 7 + 10 = $<<7+10=17>>17. #### 17 A zoo has 16 pandas, paired into mates (in the same zoo). Only 25% of the panda couples get pregnant after mating. If they each have one baby, how many panda babies are born? First divide the number of pandas by 2 to find the number of couples: 16 pandas / 2 = <<16/2=8>>8 panda couples Then multiply that number by 25% to find the number of babies: 8 panda couples * 25% = <<8*25*.01=2>>2 panda babies #### 2 A movie theater has 6 screens which show movies back-to-back all day. If the movie theater is open for 8 hours, and each movie lasts 2 hours, how many movies are shown in total throughout the day? Each screen shows movies all day, which means each screen shows 8 hours/day / 2 hours per movie = <<8/2=4>>4 movies/day. So in total, the movie theater shows 6 screens * 4 movies/day = <<6*4=24>>24 movies. #### 24 A porcelain vase was originally priced at $200 but went on sale for 25% off. If Donna bought the porcelain vase and paid 10% sales tax, how much did she pay in total? Donna got $200 x 25/100 = $<<200*25/100=50>>50 less for the porcelain vase. So, the porcelain vase is now $200 - $50 = $<<200-50=150>>150. Donna has to pay $150 x 10/100 = $<<150*10/100=15>>15 for the sales tax. Therefore, she paid $150 + $15 = $<<150+15=165>>165 in total. #### 165 Yuan is 7 years older than his brother David and twice his age. How old is David? Let x be David's age. Yuan is seven years older than David, 7 + x = Y years. Yuan is also twice David's age, 2 * x = Y years. Since these two equations equal the same thing, we can write: 7 + x = 2 * x. Subtracting x from both sides we get 7 = x, so David is 7 years old. #### 7 Carla is taking attendance for her sixth-grade class. She knows that 2 students are in the restroom, and one less than three times that number of students are absent. If there are four rows with six desks each that are all 2/3 full, how many students does Carla teach, including the ones in and out of the classroom? First find the number of absent students: 2 students * 3 - 1= <<2*3-1=5>>5 students Now find the number of students in each row of desks: 6 desks/row * 2 students / 3 desks = 4 students/row Now find the number of students in all the rows: 4 rows * 4 students/row = <<4*4=16>>16 students Now add the students that are absent or in the bathroom: 16 students + 2 students + 5 students = <<16+2+5=23>>23 students #### 23 If Clover goes for a 1.5-mile walk in the morning and another 1.5-mile walk in the evening, every day, how many miles does he walk in 30 days? He walks 1.5 miles in the morning and 1.5 miles in the evening so that’s 1.5+1.5 = <<1.5+1.5=3>>3 miles If he walks 3 miles everyday, for 30 days then he walks 3*30 = <<3*30=90>>90 miles in 30 days #### 90