Mel is 3 years older than Jade and Angela is twice as old as Mel. The sum of their ages is 57. How old is Mel? Please answer quickly, its already due. If you don't ant to answer the full answer, you can just give me the equation.

Which answer is the solution set to the inequality |x|< 9? a. x< -9 or x> 9 b. x> -9 and x< 9 c. x> -9 or x< 9 d. x< 9 and x< 9

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan 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?

Which of these tables represents a non-linear function?