Answer:
22) a. Supplemental angles
b. 43.5 degrees and 136.5 degrees
Step-by-step explanation:
22) a) If 2 angles are on a straight line then they are supplemental angles. Supplemental angles add up to 180 degrees
b) (x+1) + (3x+9) = 180
Combine like terms
4x + 10 = 180
4x = 170
divide both sides by 4
x = 42.5
so the 2 angles are 1) 42.5 + 1 = 43.5 and 2) 3(42.5) + 9= 136.5
