Gina has two bank accounts. Each account has a quarter of the balance in Betty's account. If Betty's account balance is $3,456, what is the combined balance of both Gina's accounts? Give the rationale and then the answer.
Let's think step by step. Each of Gina's account has $3456 / 4 accounts = $864 / account. Her combined account balance is therefore $864 + $864 = $1728.. The answer is: 1728.

Martin is casting three bells for the church's belfry. The first bell takes 50 pounds of bronze, the second bell is twice the size of the first bell, and the third bell is four times the size of the second bell. How much bronze does he need total? Give the rationale and then the answer.
Let's think step by step. First find the size of the second bell: 50 pounds * 2 = 100 pounds. Then find the size of the third bell: 100 pounds * 4 = 400 pounds. Then add the amount of bronze used for each bell to find the total: 100 pounds + 400 pounds + 50 pounds = 550 pounds.. The answer is: 550.

A store gives a 10% discount for the amount of the sell that was over $1000. John buys 7 items that each cost $200. What does his order cost after the discount? Give the rationale and then the answer.
Let's think step by step. His order came out to 7 * 200 = $1400. So there was 1400 - 1000 = $400 that qualified for the discount. So his discount saved 400 * .1 = $40. So his purchase came out to 1400 - 40 = $1360.. The answer is: 1360.