I put the wrong question the first time- im done anyways can someone help me this is the last question on my test.

C (the third one)

Step-by-step explanation:

As you can see on the right, it would be 46 x (m+7). So that knocks out A and B and you are left with 87x46 and 807x46. Going by the logic we used before to find the total of the left side was 46, m would equal 80. If not, then m would  be 800 and 800x40 is 32,000, not 3,200.

I hope this helps you.

answer: idk

step-by-step explanation:

1. perpendicular

2. parallel

3. perpendicular