Answer this question:Tim owns rental properties. He decides to replace all the locks and needs to get 3 keys per lock. He owns two apartment complexes which each have 12 apartments. How many keys does he need to make?
There are 2 * 12 = 24 apartments he needs keys for. So he needs 24 * 3 = 72 keys.
The answer is 72.

Answer this question:Melies bought 2 kg of meat. The meat costs $82 per kilogram. Melies has $180 in his wallet. How much money does he have left after paying for the meat?
Melies paid 2 x $82 = $164 for the 2 kg of meat. So he has $180 $164 = $16 left.
The answer is 16.

Answer this question:Nellie went to a big family party. She played with all the other kids there. She played hide and seek with her 6 sisters and her 8 brothers. Then, she played tag with all 22 of her cousins. How many kids did she play with in all?
Nellie played hide and seek with 6 + 8 = 14 kids. In all, Nellie played with 14 + 22 = 36 kids.
The answer is 36.

Answer this question:Ben spends 20% of his after-tax income on his car. If his car payment is $400 and he pays 1/3 of his gross income in taxes, how much does he make per month before taxes?
First divide that amount of the car payment by 20% to find Ben's after - tax salary: $400 / .2 = $2000. Then find the proportion of his salary Ben keeps after taxes by subtracting the tax rate from 1: 1 - 1 / 3 = 2 / 3. Then divide Ben's after - tax salary by the proportion of his salary he keeps to find his before - tax salary: $2000 / 2 / 3 = $3000.
The answer is 3000.