If i had the whole question i would answer
It would be 13 because you are adding 5 and 8
Answer:

Step-by-step explanation:
<h2>
<em><u>THE</u></em><em><u> </u></em><em><u>RÅDIÜS</u></em><em><u> </u></em><em><u>ØF</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>CYLI</u></em><em><u>NDER</u></em><em><u> IS</u></em></h2><h2>
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<em><u>THE</u></em><em><u> </u></em><em><u>HEI</u></em><em><u>GHT</u></em><em><u> OF</u></em><em><u> </u></em><em><u>CYLI</u></em><em><u>NDER</u></em><em><u> IS</u></em><em><u> </u></em><em><u>4</u></em><em><u>X</u></em><em><u> </u></em><em><u>UNITS</u></em><em><u> </u></em><em><u>.</u></em>
<em><u>☞</u></em><em><u>ÙR</u></em><em><u> ÃÑSWER</u></em><em><u> </u></em><em><u>HØPE</u></em><em><u> IT</u></em><em><u> HELPS</u></em><em><u> YOU</u></em><em><u> ✌️</u></em>
72, 96, 84, 12
72 + (7x+24) = 180
7x + 96 = 180
7x = 84
x = 12
The second answer from the top is correct. Your original choice is incorrect because the 7x and the 3 are not both being squared as the statement suggests.