Answer: a. 9 miles b. 28 miles
Step-by-step explanation:
PART A:
Area = Length x Width
Therefore, 5 times some number = 45.
To solve this, use division - 45/5 = 9 miles
PART B:
Perimeter = L + L + W + W
You know width is 5 miles and length is 9 miles.
5+5+9+9 = 28 miles.