Answer:

Step-by-step explanation:
the square root of what ever the area is. Area is length times width, but if all sides are the same then you just have to find the square root.
8 x 12 (15) = 120x180
71.25*3=3.75 = 3 1/4 inches
Answer:
in negative exponent is 2^-3
Step-by-step explanation:
4x + 2 = 2x - 20
4x-2x=-20-2
2x=-22
x=-11