Find the measure of angle x.
A.33
B.40
C.45
D.57

How do you solve a question like this?

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Solve the equation. 2x - 8(x+1)= 6(2x - 3)