Plz ! dont put a false answer brainliest if its correct is the following relation a function?

Geometry ? i don't know how to do any of these.

Which of the greatest common gcf of 32 and 48 a 16 b 96 c 8 d 32

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?