The relationship between the selling price of an item and the cost of an item has been determined to be q=-20s+400 has been determined by a marketing firm, where q is the quantity sold in a year and s is the selling price. if the cost to produce the item is $12, what is the selling price that optimizes the year yearly profit?

Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.