Which of these is the algebraic expression for six more than the product of seven and some number

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

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points