Answer:
35 inches
Explanation:
Perimeter is when all sides of a shape are added. 
Equal = All numbers are the same
If there are 5 sides and all of them have the same number then you add all of it to get the perimeter. 
If one side is 7 and there is 5, you can do multiplication ( 7 x 5 ) 
OR 
You can do 7 + 7 + 7 + 7 + 7 ( 7 added, 5 times ) 
which equals 35.