Answer:
272 miles
Explanation:
We know
Bob drove 170 miles in 2.5 hours
At his rate, how far will he drive in 4 hours?
First, we find how far he drove in 1 hour.
170 ÷ 2.5 = 68 miles in 1 hour
Then, we take
68 x 4 = 272 miles in 4 hours
So, he drove 272 miles in 4 hours.