The answer is 17.5 miles because, it depends if the family uses more or less gallons of gas. The Millers must've driven for 26.25 miles using 4 gallons of gas!!! Hpe this helps!!!
Just use your number line for help but you have to figure out if the numbers are positive or negative.
Step-by-step explanation:
If Ann lives at 0 and ben lives 7 blocks from Ann then you would say ben lives a number 7 on the number line and Carol lives 2 blocks from ben then carol would live at 9.