Triangle help, geometry!

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

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