Please help !! And the last on d is piecewise function

If a(0,0,0) and b(2,2,2) are points in coordinate space, how many paths are there from a to b that move from one lattice point to another in the positive x-,y- or z- direction?

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet