Sara buys a sweater at a department store. The sweater costs $15. The store is having a 20% off sale on everything in the store. With this sale, what is the final cost of the sweater? Do not consider the sales tax.

The sweater will cost $
dollars.

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