Please help me with this math problem

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 square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5