( -6)^0 solve this problem

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

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Need showing work for this problem 56.25 ×25.80