Answer
Equation:
$c(m) = 2.5x + 3.5$
Cost if the hotel is 9 miles from the airport:
$26.00
Work Step by Step
Using the above equation, we replace m (the distance from the airport to a hotel) with 9 and solve for c(m).
$c(m) = 2.5x + 3.5$
$c(m) = 2.5(9) + 3.5$
$c(m) = 22.5 + 3.5$
$c(m) = 26$