Answer:
75 miles squared
Step-by-step explanation:
First we have to convert 1 inch = 5 miles to square miles as that is what we are trying to get
So, 1 inch squared = 25 miles squared
To get 75 miles squared, we multiply both sides by 3.
So 3 * 1 inch squared = 3 * 25 miles squared
Gets us 3 inch squared = 75 miles squared