Please help me I really need these to be answered. Whoever does it gets 100 points!

What are the domain and range of the function? f(x) = -4 (sqrt)x

98 point question what is the record for most points in one

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