HELP ME HEP ME PLEASE IM DESPRATE

Cindy uses 1-inch cubes to find the volume of a jewelry box shaped like a rectangular prism. she uses 780 cubes to completely fill the jewelry box with no gaps or overlaps. if the jewelry box is 13 inches long and 5 inches wide, how tall is cindy’s jewelry box?

What is the least common factor of 6 and 8

Which graph of a hyperbola represents the equation 16x^2-y^2=16