Answer this question:Mandy has three $20 bills while Manny has two $50 bills. If both of them decide to exchange their bills for $10 bills, how many more $10 bills than Mandy will Manny have?
Mandy has a total of $20 x 3 = $60. So, she will have $60 / $10 = 6 $10 bills. Manny has a total of $50 x 2 = $100. So, he will have $100 / $10 = 10 $10 bills. Hence, Manny has 10 - 6 = 4 more $10 bills than Mandy.
The answer is 4.

Answer this question:Every Halloween one house in the neighborhood gives out toothbrushes instead of candy, so it always gets egged and covered in toilet paper. If the owner spends 15 seconds cleaning up each egg and 30 minutes cleaning up each roll of toilet paper, how long (in minutes) will they have to spend cleaning up 60 eggs and 7 rolls of toilet paper?
First find how many eggs per minute the owner can clean up: 60 seconds / minute / 15 seconds / egg = 4 eggs / minute. Then divide the total number of eggs by the number of eggs cleaned per minute to find how long the owner spends cleaning them up: 60 eggs / 4 eggs / minute = 15 minutes. Then find the total time the owner spends cleaning up toilet paper: 7 rolls * 30 minutes / roll = 210 minutes. Finally, add that amount to the egg cleaning time to find the total cleaning time: 210 minutes + 15 minutes = 225 minutes.
The answer is 225.

Answer this question:Jordan decides to start an exercise program when he weighs 250 pounds. For the first 4 weeks, he loses 3 pounds a week. After that, he loses 2 pounds a week for 8 weeks. How much does Jordan now weigh?
He loses 3 pounds a week for 4 weeks for a total of 3 * 4 = 12 pounds. He loses 2 pounds a week for 8 weeks for a total of 2 * 8 = 16 pounds. All total he has lost 12 + 16 = 28 pounds. Jordan weighed 250 pounds and has lost 28 pounds so he now weighs 250 - 28 = 222 pounds.
The answer is 222.

Answer this question:Nicole has 4 fish tanks. The first two tanks need 8 gallons of water each and the other two need 2 fewer gallons of water each than the first two tanks. If Nicole needs to change the water of the aquarium every week, how many gallons of water will she need in four weeks?
The first two tanks need 8 x 2 = 16 gallons of water. The other two tanks need 8 - 2 = 6 gallons of water each. So, the two other tanks need 6 x 2 = 12 gallons of water. Nicole needs 16 + 12 = 28 gallons of water every week for her four tanks. Therefore, she needs a total of 28 x 4 = 112 gallons of water in four weeks.
The answer is 112.