The tax rate is 7.5%. what is the tax on $110

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian 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? i need this done

Find the domain and range of the following function f(x) = 51x - 21+ 4

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test