Question

Your car averages 31 mph on the highway, but the actual mileage varies from average by at most 5 mph. What is your range of mileage?​

Answer 1

26-36

Explanation:

If I'm not mistaken, the range of milage should be 26-36 mph, because we know that the maximum you will deviate from your avergae is 5 in either direction. So, you can subtract 5 from 31 (26) and add 5 to 31 (36) to get the range.

Hope this helps! :)