Number 9 answer I’m lost honors algebra 1

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 radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?