At a particular music store, CDs are on sale at $12.00 for the first one purchased and $9.00 for each additional disc purchased. Maria spends $84.00 on CDs. How many CDs has Maria purchased?

A.6
B.7.
C.8
D.9

Respuesta :

D. 9 CD's...................
I thivk is letter d. but im not sure.