A sales team estimates that the number of new phones it will sell is a function of the price that it sets. It estimates that if it sets the price at x dollars, it will sell f(x)=6,228−9x phones. Therefore, the company's revenue is x⋅(6,228−9x). Find the price x that will maximize the company's revenue.

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Standard deviation of 19,29,21,22,23

A. what is the area of the base? use complete sentences to explain your reasoning. b. what is the volume of the prism? use complete sentences to explain your reasoning.