I have no clue if this is correct but the answer I got was 10,260,000
<span>38 - 7r = 3(6 - 4r)
38 - 7r = 18 - 12r
-7r + 12r = 18 - 38
5r = -20
r = -4</span>
I believe B is the answer
The area for rectangle is (l x w) or (length times width) or (length x width)
*just in case you get confused
so the length is 10, and the width is 2.5 so you plug in.
10 x 2.5 = 25
your answer is 25 mm²
hope this helps
