Harold's fancy wrapping paper can wrap 5 shirt boxes or 3 XL boxes. For the upcoming holiday, he has 20 shirt boxes to wrap and 12 XL boxes to wrap. If each roll of wrapping paper costs $4.00 per roll, how much will he spend to wrap all of the boxes? Give the rationale and then the answer.
Let's think step by step. 1 roll can wrap 5 shirt boxes and he has 20 shirts boxes to wrap so he needs 20 / 5 = 4 rolls of wrap. 1 roll can wrap 3 XL boxes and he has 12 XL boxes to wrap so he needs 12 / 3 = 4 rolls or wrap. All total he needs 4 + 4 = 8 rolls of wrap. Each roll costs $4.00 and he needs 8 rolls so it will cost him 4 * 8 = $32.00 in wrapping paper.. The answer is: 32.

James sells a $500,000 house for 20% over market value. He splits the revenue with his 3 brothers. How much does each person get after taxes take away 10%? Give the rationale and then the answer.
Let's think step by step. He sells the house for 1 + .2 = 1.2 times its value. So he sells the house for 500,000 * 1.2 = 600,000. He splits the money 1 + 3 = 4 ways. So each person gets 600,000 / 4 = $150,000 before taxes. Taxes take away 150,000 * .1 = $15,000. So each person gets 150,000 - 15,000 = $135,000.. The answer is: 135000.

Winwin won $50 in a lottery. She paid 20% for the tax and she paid $5 for the processing fee. How much was she able to take home? Give the rationale and then the answer.
Let's think step by step. Winwin paid $50 x 20 / 100 = $10 for the tax. So, she has $50 - $10 = 40 after paying the tax. Therefore, Winwin was able to take home $40 - $5 = $35 after she paid for the processing fee.. The answer is: 35.