The total cost can be represented with the addition of the base fee plus the amount due to the person driving x miles at a charge of $0.74 per mile
Then we set the following equation:
Total cost = $14.99 + $0.74 * x
SInce the person paid a total of $190.37, then we replace the total cost with $190.37 and solve for x:
190.37 = 14.99 + 0.74 x
subtract 14.99 from both sides:
190.37 - 14.99 = 0.74 x
175.38 = 0.74 x
divide both sides by 0.74 to isolate x on one side:
175.38 / 0.74 = x
x = 237
the person drove 237 miles.
