Cost, revenue, and profit are in dollars and x is the number of units. If the marginal cost for a product is MC = 2x + 20 and the total cost of producing 30 units is $2000, find the cost of producing 45 units. x $

The Hydro water department has a monthly service charge of $15 10 and a volume charge of $2 25 for every 100 cubic foet of water. The total monthly cost is equal to the service charge plus the charge for the volume used duning the month. If we let x represent the number of cubic feet of water (in hundreds) and y represent the total monthly cost, then we have total monthly cost volume charge service charge y-2.25x+ 16.1o If the Johnson family used 200 ess water this month than last month, then they can expect OA an increase in their water bil of $30.20 OB. a decrease in their water bil of S4.50 C. a decrease in their water bll of $30.20 OD an increase in their water bil of $4.50

Assume it costs Microsoft $4,300 to manufacture 5 Xbox 360s and $6,850 to manufacture 10. Obtain the corresponding linear cost function. C(x) =        What was the cost (in dollars) to manufacture each additional Xbox? $  Use the cost function to estimate the cost of manufacturing 50 Xboxes (in dollars). $

The demand equation for a certain product is 6p² + q² = 1,200, where p is the price per unit in dollars and q is the number of units demanded. Find dq/dp. OA. dq/dp - p/6q OB. dq/dp - 6p/q OC. dq/dp -q/6p OD. dq/dp - 6q/p ...