The task is to generate the correct answer for a given math problem.

[Q]: Problem: a car salesman earns a base salary of $ 1000 per month plus a commission of $ 200 for each car he sells . if the car salesman earned $ 2000 in march , how many cars does he need to sell in april in order to double his march earnings ?
[A]: 15


[Q]: Problem: if the average of 5 x and 8 y is greater than 90 , and x is twice y , what is the least integer value of x ?
[A]: 4


[Q]: Problem: if an investor puts $ 800 in a savings account that earns 10 percent annual interest compounded semiannually , how much money will be in the account after one year ?
[A]:
$ 882