Solve the Problem $\$ 9.25$ Each Each Used CD Costs Him $\$ 3.75$

Multiple Choice

Solve the problem.
-Bill Monotone sells used CDs for $\$ 9.25$ each. Each used CD costs him $\$ 3.75$ . His overhead is $\$ 6700$ . Express the cost $C$ as a function of $x$ where $x$ is the number of CDs sold.

A) $C ( x ) = 9.25 x + 6700$
B) $C ( x ) = 6700 x + 3.75$
C) $C ( x ) = 6700 x + 9.25$
D) $C ( x ) = 3.75 x + 6700$