The total cost C for a manufacturer during a given time period is a function of the number / of items produ period. To determine a formula for the total cost, we need to know the manufacturer's fixed costs (coverin plant maintenance and insurance), as well as the cost for each unit produced, which is called the variable total cost, we multiply the variable cost by the number of items produced during that period and then add Suppose that a manufacturer of widgets has fixed costs of $5000 per month and that the variable cost is (so it costs $12 to produce 1 widget). (a) Use a formula to express the total cost C of this manufacturer in a month as a function of the widgets produced in a month. (Use / as the number of widgets produced in a month.) C= (b) Express using functional notation the total cost if there are 175 widgets produced in a mon C Calculate the total cost if there are 175 widgets produced in a month. $