The maximum number of miles they can travel is 6 miles.
Step-by-step explanation:
Because of the fix charge of $2, the amount of money left for the rest of the trip is $18. In order to find how many miles $18 cover when the cab charges $3 per hour, 18 is divided by 3. 18/3=6.
<span>Step 1: Make sure the bottom numbers are the same.Step 2: Add the top numbers , put the answer over the denominator.<span>Step 3: Simplify the fractio</span></span>
