Final answer:
David drove the truck approximately 237.55 miles.
Step-by-step explanation:
To find the number of miles David drove the truck, we need to subtract the base fee from the total amount he paid and then divide the result by the additional charge per mile. Let's denote the number of miles as 'x'. The equation would be:
(x * 0.88) + 16.99 = 195.63
Solving for x, we get:
x = (195.63 - 16.99) / 0.88
x = 209.64 / 0.88
x ≈ 237.55
Therefore, David drove the truck approximately 237.55 miles.