What is the simplified form of 3 to the square root of 7-5 to the square root of 7

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?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Benjamin is making bow ties. how many 1/2yards lomg bow ties can he make if he has 18 feet of fabric?