Answer: first picture is for y=-5/3x + 3
Step-by-step explanation:
It’s 17
Subtract 163 from 180 and you will get 17 degrees

The cosine function is negative in 2nd and 3rd quadrants, So you know that you will have 2 solutions. One between pi/2 and pi, the other between pi and 3pi/2.
Refer to a unit circle to find that

Final Answer: