The coordinate (2,20) indicates that he rode 20 miles in 2 hours
If w is real then we need ignore negative sign and consider it as a mod value. So the answer will be 2
Perhaps you mean to find the volume under

? It seems like you have to rely on calculus otherwise (in the case that you indeed mean

).
Assuming this, note that

describes the top half of a sphere with radius 8, which means the volume below this surface over the disk

is simply half the volume of the sphere. Thus the volume is
Answer:
2 11/12 mixed number
Step-by-step explanation: