Question

A. 64 square feetB. 16 square feetC. 32 square feetD. 8 square feet

Answer 1

Recall that to evaluate an equation at a given value, we substitute the variable by the given value.

Also, recall that:

`(ab)^2=a^2b^2.^{}`

Therefore, substituting s=8ft in

`A=s^2,`

we get:

`A=(8ft)^2\text{.}`

Simplifying the above equation we get:

`\begin{gathered} A=8^2ft^2, \\ A=64ft^2\text{.} \end{gathered}`

Answer: Option A.