Y'all I need help I'm being timed please

Diana wants to make several cans with a diameter of 6 inches and a height of 8 inches. She is going to cut the cans from a sheet of metal that has an area of 2,675 inches squared. How many cans will she be able to make?

Alexis is crafting a necklace made out of wooden beads. She has eight wooden spheres with radii of 3 millimeters each to use for her necklace. She is going to paint the spheres before she drills a hole through them to string. How many squared millimeters of paint does she need to cover all the beads?