There are 18 gallons of gas in a car at the beginning of a trip. Each hour into the trip 2.5 gallons are used. Write an equation to represent the gas left in the car after each hour into the trip. Identify the variables

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

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)