PLEASE HELP....

(a) What are the critical values of x)? (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) X : (In) On what intervals is f increasing? (Enter your answer using interval notation.) (c) On what intervals is fdecreasing? (Enter your answer using interval notation.) (d) Find the x-value(s) of the local maxima of f(x). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) x: (e) Find the x-value(s) of the local minima of f(x). (Enter your answers as a commaseparated list. If an answer does not exist, enter DNE.) X= Submit Answer | 14. [10.77 Points] -. 016 Submissions Used - The profit of manufacturing x toasters in one day is given by the following. P(x) = 70.05% + 21x 7 290, o