Answer:
13
Step-by-step explanation:
cos(60) =building height / 26
I think is D , hope i answer fast enough haha :D
y = ( x + 9 )^2 - 2
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Answer:

Step-by-step explanation:

<u>1.Find the LCM(Least Common Multiple).</u>
That would be 20.
<u>2.Multiply so all denominators are equal.</u>

<u>3. Add</u>
<u></u>
<u>4. Simplify</u>
<u></u>