Which expressions are equivalent to the on below select all that apply 9x

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?

If jaime wants to find 60% of 320, which table should he use?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r