I need help on geometry proofs

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.

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.