Answer:
1) C)↔PQ
2) C) 99
3) D) 48
Step-by-step explanation:
A line has no end points so c
add the two degrees together --> 18 + 81 = angle RST
plug the equation to each other cause their the same length
10x+8 = 14x-8
add 8 to both sides --> 10x+16 = 14x
subtract 10x from both sides --> 16 = 4x
now divide by 4 on both sides to get x alone
X = 4 -- plug it back into eqation 14x-8 to get the angle
14 x 4 = 56 - 8 = 48
