Question

You have $900 in a checking account. You pay a $60 cell phone bill each month using this account.

The account balance is given by 900 + (-60 t), where t is the time in months. What is the balance
of the account after 4 months?

Answer 1

$660

Explanation:

multiply 60 by 4 and get 240

Subtract 240 from 900

Answer 2

$660

Explanation:

You multiply 60 by 4 and get 240

Subtract 240 from 900