Amelia has $60 to spend on her dinner at a restaurant. The first course costs $15 and the second course $5 more. The cost of the dessert is 25% of the price of the second course. How much money will Amelia have left after buying all those meals?

The second course cost Amelia $15 + $5 = $

<<15+5=20>>20. The dessert cost 25/100 * $20 = $<<25/100*20=5>>5. That leaves Amelia with $60 - $15 - $20 - $5 = $<<60-15-20-5=20>>20. #### 20 How many right triangles with a height of 2 inches and a width of two inches could fit inside a square with 2-inch sides? A triangle with a height of 2 inches and width of 2 inches has an area of 2 square inches because (1/2) x 2 x 2 = <<(1/2)*2*2=2>>2 The square has an area of 4 square inches because 2 x 2 = <<2*2=4>>4 2 triangles would fit because 4 / 2 = <<4/2=2>>2 #### 2 The basketball team sold 50 cupcakes for $2 each and 40 cookies for $0.5 each. Then the money from their sales was used to buy two basketballs that cost $40 each. The rest of the money was used to buy 20 bottles of energy drinks. How much does a bottle of energy drink cost? The basketball team earned 50 x $2 = $<<50*2=100>>100 from selling cupcakes. They also earned 40 x 0.5 = $<<40*0.5=20>>20 from selling cookies. So their total earnings was $100 + $20 = $<<100+20=120>>120. The two basketballs cost $40 x 2 = $<<40*2=80>>80. Thus, $120 - $80 = $<<120-80=40>>40 was used to buy the 20 bottles of energy drinks. Therefore, each bottle of energy drink costs $40/20 = $<<40/20=2>>2. #### 2 The cost of purchasing two commodities is $827. If the purchase price of the first one exceeds the other by $127, what is the purchase price of the first commodity? Let X be the price of the first commodity, so the price of the second commodity is X - $127. The cost of purchasing two of them is X + (X - $127) = $827. Combining like terms, we get X*2 - $127 = $827. Subtracting $137 from both sides, we get X*2 = $954. Dividing both sides by 2, we get X = $477. #### 477 Martha collected 90 cans while Diego collected 10 more than half the cans collected by Martha. If both of them should collect a total of 150 cans for their project, how many more cans do they need to collect? Half the cans collected by Martha is 90/2 = <<90/2=45>>45 So, Diego collected 45 + 10 =<<45+10=55>>55 cans. Martha and Diego collected 90 + 55 = <<90+55=145>>145 cans together. Thus, they need to collect 150 - 145 = <<150-145=5>>5 more cans. #### 5 Janele wants to figure out the average weight of her cats. She has 4 of them. The first two weigh 12 pounds each. The third weighs 14.7 pounds and the fourth weighs 9.3 pounds. What is their average weight? The four cats weigh 48 pounds in total because 12 plus 12 plus 14.7 plus 9.3 equals <<12+12+14.7+9.3=48>>48. The average weight is 12 pounds because 48 divided by 4 is <<48/4=12>>12. #### 12 Jessica just got her driving permit. She must complete 50 hours of driving with a parent to get her driver’s license. It takes 20 minutes to drive to school. If she drives to and from school every day, how many school days will it take Jessica to meet the 50-hour driving requirement? Jessica will drive 20 minutes, twice every school day (to and from school), so 20 minutes x 2 trips = <<20*2=40>>40 minutes each day. There are 60 minutes in 1 hour, so 50 hours of driving x 60 minutes/hour = <<50*60=3000>>3,000 minutes. If you take the 3,000 minutes she needs to drive / 40 minutes driving each day = <<3000/40=75>>75 school days to drive 50 hours. #### 75 In his garden, Grandpa had counted 36 small tomatoes before going on vacation. When he came back from vacation, he counted 100 times more tomatoes. How many tomatoes grew in his absence? Before going on vacation, Grandpa counts 36 tomatoes. After going on vacation, Grandpa has 100 * 36 = <<100*36=3600>>3600 tomatoes. So in his absence, 3600 - 36 = <<3600-36=3564>>3564 tomatoes have grown. #### 3564 A carpenter made ten tables for this month. Last month, he made three fewer tables than this month. How many tables did the carpenter make in total? The carpenter made 10 - 3 = <<10-3=7>>7 tables last month. So, the carpenter made 10 + 7 = <<10+7=17>>17 tables in all. #### 17 If there are sixty-five dolphins in the ocean, and three times that number joins in from a river which has its mouth at the ocean, calculate the total number of dolphins in the ocean. When three times the number of dolphins in the ocean joins in from a river, the number of dolphins in the ocean increases by 3 *65 = <<3*65=195>>195 The total number of dolphins in the ocean increases to 195+65 = <<195+65=260>>260 #### 260