Question 28360
Best way to solve this is to use a table...
The problem tells us that the car travels 55 miles per hour so we know the value for 1 hour right out of the problem.

{{{Trip_(time in hours)______.5______1______1.5______2_____Etc.}}}
{{{Trip_(miles travelled)___27.5____55_____82.5_____110____Etc.}}}

Etc.

Best of luck!