The Formula for the Cost C of Renting a Banquet $\frac{1}{2}$

The formula for the cost C of renting a banquet room is given by C = 150 x + 300 where x is the number of hours the room is rented. Find the cost of renting the room for 4 $\frac{1}{2}$ hours.

A) $975.00
B) $9750.00
C) $5335.00
D) none of these