Mathematics

Akira

7 October, 16:09

A bank's monthly charge for maintaining an account is $.45 for each check written plus a service charge of $12.50. If x represents the number of checks written during the month, which function models this situation?

A) f (x) = x + 12.50

B) f (x) = 0.45x - 12.50

C) f (x) = 12.50x + 0.45

D) f (x) = 0.45x + 12.50