Please help. Its due today

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

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

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14