Given :
David rented a truck for one day there was a base fee of $17.99 .
Charge per mile driven is, c = 98 cents = $0.98 .
He pay $137.55 at the end of the day.
To Find :
How many miles did he drive the truck.
Solution :
Let, number of miles he drive is n.
So,
[tex]n = \dfrac{137.55 - 17.99}{0.98}\\\\n = 122\ miles[/tex]
Therefore, number of miles he drive the truck is 122 miles.