How many ways can the manager of a softball team chose players for the top 4 spots in the lineup if she has 7 possible players in mind?

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left