The answer would be c but why u have d
We need a pic of the line plot to complete and answer this
3x=x+40
Subtract x from both sides
2x=40
Divide both sides by 2nto get x by itself
x=2
Plug 2 in for x
m∠4 = (3x)
m∠4 = 3(2)
Solve
m∠4 = 6
The second part would be $700. I'm not sure how I would solve the first part. You should click the hint button.<span />