Can you help with the following premises related to polynomial, rational, or radical functions? Please see instructions in the following image. Please work out solution step by step, clear and understandable. Thank you in advance.

2) Consider a hypothetical cell phone company whose manufacturing costs x number of cell phones is C = 2000x + 750, and whose profit from x number of cell phones is R = -0.09x- + 7000x. Apply the properties and relative values of polynomial functions to determine the profit function and the profit of the company. x = 100 Cellphones x = 25,000 Cellphones x = 60,000 Cellphones 3) The unit price of an item affects its supply and demand. That is, if the unit price rises, the demand for the item will generally decrease. For example, a local newspaper currently has 84,000 subscribers with a quarterly charge of $ 30. Market research has suggested that if owners increased the price to $ 32, they would lose 5,000 subscribers. Assuming that subscriptions are linearly related to price, apply the relative maximum and minimum values of a polynomial function to determine the price that the newspaper should charge for a quarterly subscription to maximize its revenue. 4) The benefit of selling local ballet tickets depends on the price of the ticket. Using past receipts, we find that profit can be modeled with the function p = -15x- + 600x + 60, where x is the price of each ticket. Apply the relative maximum and minimum values of a polynomial function to determine the ticket price that provides the minimum profit and the maximum profit. 5) Consider the polynomial p(x) = x3 -7x - 40. Evaluate p(5) and p(-3). What can we predict about the behavior of the function in one of the x-intercepts of p(x)