30.50-14= 16.50
16.50 divided by 2.75= 6
The answer is 6
6 + 9y - 18 = -3 Combine like terms (6 and -18)
9y - 12 = -3 Add 12 to both sides
9y = 9 Divide both sides by 9
y = 1
The other person is literally wrong. The answer is D. Supplementary because two angles that add up to 180 are supplementary angles.
6/8, 9/12, 12/16, pick your favorite.
1st one on second row I think