i just need 4 a and b, show all working please

set up the triple integral which gloss the volume of the solid bounded about by 2= 18- 4-42 and bounded below by 2 - x 2 +4? A using Rectangular Coordinates 4) Gues S is the solid bounded above by x 3 323- 4 and below by z = Q . C hemi sphere in Octrob I, II, II and IZ " ) set up the integral [ ixbyte dV using b) set up the about integral using cylindrical courtinate