Chapter 2.4, Problem 52AYU

Parking at O’Hare International Airport The short-term (no more than 24 hours) parking fee F (in dollars) for parking $x$ hours on a weekday at O’Hare International Airport’s main parking garage can be modeled by the function

$F(x)=\{\begin{array}{cc}2-3\mathrm{int}(1-x)& if0<x\le 4\\ 2-9\mathrm{int}(3-x)& if4<x\le 9\\ 74& if9<x\le 24\end{array}$

Determine the fee for parking in the short-term parking garage for

2 hours

7 hours

15 hours

8 hours and 24 minutes