Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees.
Slope: -2/3
y intercept: -1
3(j+4)-9=9
3j + 12 -9 =9
3j +3 =9
3j =6
j=2
That question is simple;
314+10 = 324
the answer would be 324
