What is the expression for this:

12 less than 4 times a number

What could explain what happened when the time was equal to 120 minutes

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?

If i have one apple and give you the apple, how many apples do i have?