I think a would be 115 degrees. B would be 71 degrees. I think the second question would be c.
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Answer:
x = 27
y = 29
Step-by-step explanation:
Answer:
B)
and C) 
Step-by-step explanation:
Once a linear function has a constant rate of change, you just have to find the linear functions. Also, the other ones are quadratic functions, and their graph are parabolas, which don't have a constant rate of change.
Considering 
has a constant positive rate of slope 2.

has a constant negative rate of slope -7

Answer:
c
Step-by-step explanation:
i used my calculator