PLS HELP I DONT UNDERSTAND :( WILL GIVE BRAINLIEST!! +25 POINTS

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?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33