The student council sells scented erasers in the morning before school starts to help raise money for school dances. The local bookstore donated 48 boxes of erasers. There are 24 erasers in each box. If the student council sells the erasers for $0.75 each, how much money will they make?

There are 48 boxes x 24 erasers =

<<48*24=1152>>1,152 erasers. The student council will make 1,152 erasers x $0.75 = $<<1152*0.75=864>>864. #### 864 Betty is 60 years old, and she is the oldest person in the family. Her daughter is 40 percent younger than she is, and her granddaughter is one-third her mother's age. How old is the granddaughter? Betty's daughter is 40/100 * 60 = <<40/100*60=24>>24 years younger than she is. That means her daughter is 60 - 24 = <<60-24=36>>36 years old. So the granddaughter is 1/3 * 36 = <<1/3*36=12>>12 years old. #### 12 Joy fosters dogs. The mom foster dog eats 1.5 cups of food, three times a day. The puppies each eat 1/2 cup of food, twice a day. There are 5 puppies. How much food will Joy need for the next 6 days? The mom dog eats 1.5 cups of food * 3 = <<1.5*3=4.5>>4.5 cups per day. For 6 days the mom dog will need 6 * 4.5 cups = <<6*4.5=27>>27 cups of food. The puppies eat 1/2 cup of food * 2 = <<1/2*2=1>>1 cup per day. There are 5 puppies * 1 cup = <<5*1=5>>5 cups per day for the puppies. For the 6 days, the puppies will need 5 cups * 6 = <<5*6=30>>30 cups of food. Combined the dogs will need 27 cups + 30 cups = <<27+30=57>>57 cups. #### 57 There are 84 people waiting in line to ride a roller coaster at an amusement park.  The roller coaster has 7 cars, and each car seats 2 people.  How many times will the ride operator have to run the roller coaster to give everyone in line a turn? Each run will hold 7 * 2 = <<7*2=14>>14 people. The ride will have to run 84 / 14 = <<84/14=6>>6 times. #### 6 Rodney has 35 dollars more than Ian. Ian has half as much money as Jessica has. If Jessica has 100 dollars, how much more money does Jessica have than Rodney? Ian has 100/2 = <<100/2=50>>50 dollars. Rodney has 50+35 = <<50+35=85>>85 dollars. Jessica has 100-85 = <<100-85=15>>15 more dollars than Rodney. #### 15 Tracy, Michelle, and Kati take a road trip that is a total of 1000 miles. Tracy drives 20 miles more than twice Michelle, and Michelle drives 3 times the amount that Katie drives. How many miles does Michelle drive? Let x represent the number of miles Kati drives Michelle:3x Tracy:20+2(3x)=20+6x Total:x+3x+20+6x=1000 10x+20=1000 10x=980 x=<<98=98>>98 miles 3(98)=<<3*98=294>>294 miles #### 294 Dale owns 4 sports cars. The red one can travel at twice the speed of the green one, but the green one can travel at 8 times the speed of the blue one. The yellow one is broken and cannot move at all. If the blue one can travel at a speed of 80 miles per hour, at what speed, in miles per hour, can the red car travel? If the blue car can travel at 80 mph, then the green one can travel at 8*80=<<8*80=640>>640 mph If the green car can travel at 640 mph, then the red can travel at 2*640=1280 mph #### 1280 Lilith originally had five dozen water bottles that she needed to sell at $2 each to get exactly enough money to buy her friend a birthday gift. However, at the store, Lilith realized she could not sell at $2 because the regular price was $1.85 per water bottle in her town, and she had to reduce her price to $1.85 as well to sell her water bottles. Calculate the total amount of money Lilith will have to find to buy her friend the birthday gift after selling her water bottles at the reduced cost. Lilith had 5 dozen water bottles, and since a dozen has 12 water bottles, the total number of water bottles she had was 12 bottles/dozen * 5 dozen = <<12*5=60>>60 bottles To buy her friend the birthday gift, Lilith originally had to sell her water bottles for a total of 60 bottles * $2/bottle = $<<60*2=120>>120 When she reduced the price to $1.85 to meet the regular price, the total amount of money she had from the sales was $1.85/bottle * 60 bottles = $111 To buy her friend the birthday gift, Lilith has to find $120 - $111 = $<<120-111=9>>9 more #### 9 John pays for half the cost of raising a child. It cost $10,000 a year for the first 8 years and then twice that much per year until the child is 18. University tuition then costs $250,000. How much did it cost? The first 8 years cost 8*10,000=$<<8*10000=80000>>80,000 The next 18-8=<<18-8=10>>10 years They cost 10000*2=$<<10000*2=20000>>20,000 per year So they cost 20,000*10=$<<20000*10=200000>>200,000 So the cost was 200,000+80,000=$<<200000+80000=280000>>280,000 Adding in the cost of tuition brings the cost to 250,000+280,000=$<<250000+280000=530000>>530,000 Since John pays for half the cost of raising the child, he pays $530000/2 = <<530000/2=265000>>265000 #### 265000 At a gym, the blue weights are 2 pounds each, and the green weights are 3 pounds each. Harry put 4 blue weights and 5 green weights onto a metal bar. The bar itself weighs 2 pounds. What is the total amount of weight, in pounds, of Harry's custom creation? The blue weights weigh 4*2=<<4*2=8>>8 pounds The green weights weigh 5*3=<<5*3=15>>15 pounds The weights weigh 8+15=<<8+15=23>>23 pounds. The total is then 23+2=<<23+2=25>>25. #### 25