Your 4th option would be ur correct one
The answer is 56 ft
The perimeter of the rectangle with width w and length l is:
P = 2w + 2l
We know:
w = 7 ft
l = 3w = 3 * 7 = 21 ft
P = 2w + 2l
P = 2 * 7 + 2 * 21
P = 14 + 42
P = 56 ft
Any number that can be writen as a fraction example: 0.75, -15, 0, 9
Answer:
-6.3
Step-by-step explanation:
7/10 X -9/1 = -63/10 = -6.3