Where is “z” on a number line if the absolute number of “z” = 12?

A: 12

B: -12 or 12

C: -12, 0, or 12

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative