Answer:
He drove the truck for 234 miles
Step-by-step explanation:
Let x represent the number of miles for which he drove the truck.
There was a base fee of $20.99, and there was an additional charge of .96 cents for each mile driven. It means that the expression for the cost of driving the truck for x miles in a day is
20.99 + 0.96x
Trey has to pay $245.63 when he returned the truck. It means that
20.99 + 0.96x = 245.63
0.96x = 245.63 - 20.99
0.96x = 224.64
x = 224.64/0.96
x = 234 miles
