Answer:
66.25m
Step-by-step explanation:
D. 1/4 + 1/5 = 5/20 + 4/20 = 9/20 = 45/100 = 0.45
First, we know the formula to find the area of a square is A=s^2 where s= side length. Since we have the area, we can solve for s: 81=s^2. To solve for s, you would take the square root of both sides to get s=9. Then, we know the formula for the perimeter of a square is P=s*4. Since we now have s, we can solve for P: P=9*4 or P=36 feet which is the final answer.
-9/6 / -3/2
You can write it as, 9/6 * 2/3 = 3/3 = 1