try this one please i will give you 50 points

Answer:
18.50 ft
Step-by-step explanation:
Add 1.25 to the length:
3 + 1.25 = 4.25
The formula for the perimeter of a rectangle is: L + L + W + W.
To find the perimeter quicker, multiply the length and width by 2, then add.
5.00(2) = 10.00
4.25(2)= 8.50
10.00 + 8.50 = 18.50