Can you help me out with both of these pls

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

This is about circle theorems. someone asap : (

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.