The lights in Malcolm's house are flickering, and he hopes that replacing all of his white lights with colored lights will make it stop. He buys 12 red lights, 3 times as many blue lights, and 6 green lights. If he still has 5 colored lights left to buy, how many white lights did Malcolm have initially? Give the rationale and then the answer.
Let's think step by step. Malcolm has bought 12 * 3 = 36 blue lights. This means he has bought a total of 12 + 36 + 6 = 54 colored lights. If he still needs to buy more lights, then he must have initially had 54 + 5 = 59 white lights.. The answer is: 59.

The total cost of Olivia's groceries was $42. The bananas cost her $12, the bread cost her $9, and the milk cost her $7. The only other groceries she bought were apples. In dollars, how much money did the apples cost her? Give the rationale and then the answer.
Let's think step by step. The combined cost of the bananas, bread, and milk was 12 + 9 + 7 = $28. The difference between this and the total is the cost of the apples, which must have therefore cost Olivia 42 28 = $14.. The answer is: 14.

Gary manages two Amazon distribution centers. The first center processes 10000 packages per day, and the second center processes three times that volume. If Amazon makes 5 cents of profit per package, how much profit per week do the two centers make combined? Give the rationale and then the answer.
Let's think step by step. First find how many packages the second center processes per day: 10000 packages / day * 3 = 30000 packages / day. Then add the packages the first center processes: 30000 packages / day + 10000 packages / day = 40000 packages / day. Then multiply the number of packages by Amazon's profit per package to find Amazon's daily profit: 40000 packages / day * $0.05 / package = $2000 / day. Then multiply the daily profits by the number of days in a week to find the weekly profits: $2000 / day * 7 days / week = $14000 / week.. The answer is: 14000.