Not hard at all if you have the formula:
distance = rate × time
- rate = 65 mph
- time = 3.5 hours
Plug in the numbers and compute the answer
Think about it. 65 mph means you go 65 miles in one hour, so in 2 hours you go 65×2 miles, in 3 hours you go 65×3 miles, and in 3.5 hours you go 65 × 3.5 miles.