Evaluate 2x^2-3x+6 for x=4

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

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

What is 6/10 rounded to the nearest half