Answer:
{2, 3, 4, 5}
Step-by-step explanation:
Note before I start: You probably meant to say x/2+3, so I will do this only.
Plug the values in.
You will get 2, 3, 4, and 5.
The range is just these values, so the answer is {2, 3, 4, 5}
-0.04x +17.2
42 degrees
48 and r are equal.
The box means right angle, or 90 degrees
180-90-48=42 degrees