What is the surface area of this design/

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?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?