Answer:
The length of each side of the base is 
Step-by-step explanation:
we know that
The area of a square is equal to

where
b is the length side of a square
In this problem we have

so
substitute in the formula

Square root both sides


X-16=-8
Add 16 on both sides
x=-8+16
And solve; your answer will be
x=8
36 × 0.07 = $2.52 sales tax
The correct answer is 228.00 m2