Solve the Problem B) C) D)

Multiple Choice

Solve the problem.
-A paddle boat rental company rents paddle boats by the hour. They charge $7.00 per hour for the first 3 rental hours and $5.00 per hour for each additional hour. Write a piecewise function to represent the cost of renting a
Paddle boat as a function of hours it is rented.

A) $f ( x ) = \left\{ \begin{array} { l l } 7 \llbracket x \rrbracket & \text { if } 0 < x \leq 3 \\21 \llbracket x \rrbracket + 5 \llbracket x - 3 \rrbracket & \text { if } x > 3\end{array} \right.$
B) $f ( x ) = \left\{ \begin{array} { l l } 7 \llbracket x \rrbracket & \text { if } 0 < x \leq 3 \\7 \llbracket x \rrbracket + 5 \llbracket x - 3 \rrbracket & \text { if } x > 3\end{array} \right.$
C) $f ( x ) = \left\{ \begin{array} { l l } 7 \llbracket x \rrbracket & \text { if } 0 < x \leq 3 \\21 + 5 \llbracket x - 3 \rrbracket & \text { if } x > 3\end{array} \right.$
D) $f ( x ) = \left\{ \begin{array} { l l } 7 \llbracket x \rrbracket & \text { if } 0 < x \leq 3 \\5 \llbracket x - 3 \rrbracket & \text { if } x > 3\end{array} \right.$