<h3>

is the simplified expression</h3>
<em><u>Solution:</u></em>
Given that,
We have to simplify

We can simplify the above expression by combining the like terms
Like terms are terms that has same variable with same exponent and same or different coefficient
From given,

Group the like terms

Thus the given expression is simplified
Answer:
About 80.5 feet.
Step-by-step explanation:
I really don’t understand this question. can you explain this in the comment so i can answer your