Question

Find measure of angle EFG

Answer 1

102degree if you want to know the detail just ask me

Answer 2

First, you know that angle EFG is 17x degrees
You also know from the supplementary angles that 17x+13x should be equal to 180.

So,
17x+13x=180
30x=180
x=180/30
x=6

Therefore 17(6)= 102 degrees

Hope I helped :)