Genna rents a car for a business trip. The rental company charges a fee of $\$ 45$ plus 12 cents per kilometre driven. If Genna's bill before taxes is $\$ 74.16$, how many kilometres did she travel in the car?
(A) 993
(B) 375
(C) 243
(D) 288
(E) 618
If Genna's total bill was $\$ 74.16$ and a $\$ 45$ fee was charged, this means that her cost based on the distance she drove was $\$ 74.16-\$ 45.00=\$ 29.16$. Thus the number of kilometres driven is $\frac{29.16}{0.12}=243$.

ANswer: (C)