It would be three feet. Hope this helps.
The simplified expression of
is 
<h3>How to simplify the expression?</h3>
The expression is given as:

Expressions raise to power 0 is 1.
So, we have:

Apply the law of indices to expression with common base

Evaluate the sum and difference

Remove the bracket

Hence, the simplified expression of
is 
Read more about exponents at:
brainly.com/question/847241
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4x+24=84 4x=60 x=15 length =27 width = 15
I know Iscoscles and acute only