7.C I think is the answer
Answers:
<u>A. 17</u>
<u>B. 27</u>
<u>C. -19</u>
<u>D. -7</u>
<u>E. 17</u>
<u>F. 326</u>
<u></u>
<h2>BRAINLIEST PLEASE</h2>
He would need to find the area of the room (area of the rectangle) by multiplying the length of the room by the width of the room.