Answer:
This equation has 2 solutions.
1. 
2. 
Just scan it, there’s an answer for it already I’m pretty sure
Supplementary angle = 180
180 - 51 = x
x = 129
C) 129 degrees is your answer
hope this helps
Answer:
40% OR -1/4
Step-by-step explanation:
It could be 40% as all the other numbers are in fraction form while this one is written as a percent.
It could also be -1/4 because that is the only negative number.