Answer:
What I usually do is find out the actual answer then round it. Make sure to write down that maybe you used mental math or a process of steps you have learned. Hope this was a bit helpful.
Answer:
y=8
Step-by-step explanation:
the sum of the three angles is 180
57 + 90 + 5y-7 = 180
5y + 140 = 180
5y = 40
y = 8
Uhhh divide 7•3•5 or multipy
You are right: the graph does not represent a proportion, because it does not go thru the origin.