The daily cost to manufacture trinkets for tourists is given by the cost function c(x)=0.002r? +4.8x+750 dollars where x is the number of trinkets. a. use calculus to estimate the cost of the 242nd trinket. how does this compare with the exact cost of producing the 242nd trinket? include correct units. do not round values. b. if the trinkets sell of $5.50 each, report the revenue and profit functions. c. for which value is marginal profit zero? interpret your answer. include correct units. what is the significance of the point where the marginal profit is zero? problem #5: a company has predicted the demand equation for its product to be 885 plus where 4 is the total number of units sold that your company can sell in a week at a price of p dollars. the total manufacturing cost amounts to $92 per unit. what are the units of these a. find the profit and marginal profit functions in terms of the demand functions? b. use calculus to estimate the profit generated by selling the 225th unit. compare this with the fxact profit generated by selling the 225th unit. include correct units. do not round values. muchould raise or lower the price in order to