4. Simplify using the horizontal method. (2n2 + 5n + 5)(2n - 4) 4n3 + 2n2 - 10n - 20
4n3 - 2n2 + 30n - 20
4n3 + 18n2 - 30n - 20 ls
4n3 + 10n2 - 2n - 20

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