A line graph with the y axis labeled "Price" and the x axis labeled "Output Quantity". Points $4, $8, and $12 are shown on the y axis and 100, 150, and 170 on the x axis. Three dotted horizontal lines extend from each point on the y axis and intersect with vertical dotted lines going down to the x axis. A curved line labeled "MR" starts at the lower left and goes upward with points marked at (100, $4), (150, $9), and (170, $12). A curved line labeled "ATC" starts on the left, just below the $12 line and above the MR line, and goes through points (100, $8) and (170, $8) and extends out and to the right. A straight line labeled "Demand" starts at the top left and slopes downward with points marked at (100, $12), (150, $9), and (170, $8). Another line labeled "MR" starts at the same point, sloping more sharply downward with a point at (100, $4). Refer to the above graph of a profit-maximizing firm in monopolistic competition. For this firm, the quantity of output is , the price is $ , and the amount of profit is $