Which is the correct equation for x:y=8:1

See picture attached.

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?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Which one is true about the hexagons ?