What is the approximate side length of each square
figure to the nearest whole unit.
"a mural with an area of 81 units2"
(hint: what is the side length of the square.)

Step-by-step explanation:

You need to use the following formula for calculate the area of a square:

Where "s" is the lenght of any side of the square.

You know that the area of a mural is . Then, you can substitute this area into the formula and solve for "s", in order to find the side lenght of the mural.

Therefore, this is:

5

step-by-step explanation: