Answer:
its the 3rd one i just did it
Step-by-step explanation:
Hello there!
The slope intercept form is:

So...
We would have

I hope this helps!
Answer:
∠b = 88 - 5x
Step-by-step explanation:
If a and b are complementary, then sum of two angles is 90
∠a + ∠b = 90
5x + 2 + ∠b = 90
∠b = 90 - 5x - 2
∠b = 88 - 5x