Can anyone help me with this by showing the work please

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?

Find the solutions for a triangle with a =16, c =12, and b = 63º

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?