Question

PLease help . . . . . . . .

Answer 1

Traveling $m$ miles on this taxi costs

$c=2.5+3.25m$

In fact, we spend 2.50 no matter what, and then we add 3.25 (i.e. the cost of a mile) multiplied by the number of miles.

This quantity has to be less than or equal to 61, so we have

$2.5+3.25m\leq 61$

Solving for $m$, we start by subtracting 2.5 from both sides:

$3.25m\leq 58.5$

Then, we divide both sides by 3.25:

$m\leq 18$