Ryan's car used 10 gallons of gas to drive 395 miles. At what rate does his car use gas in miles per gallon? Express your answer in simplest form.

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

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Combine like terms to make a simpler expression 3z+z