What shape is this and can you me with the questions and you so much

A) There's no shape name for that, however, it's a hexagonal pyramid put on top of a hexagonal prism's base.

b) There are 3 shape types that make up the surface area; 6 triangles, 6 rectangles and a hexagon. These 13 shapes make the surface area.

Triangles (6)

A = 6(bh/2)
   = 6[(6)(5)/2]
   = 6(30/2)
   = 6(15)
   = 90

Rectangles (6)

A = 6(bh)
    = 6[(4)(6)]
    = 6(24)
    = 144

Hexagon (1)

A = 
   = 
   = 5.19/2 (16)
   = 2.6 (16)
   = 41.6 (ish)

41.6 + 144 + 90
41.6 + 234
275.6

Therefore, surface area is approximately 275.6cm^2