solve this problem and How am I going to apply this lesson to understand something in life?

'. ('l LO 3) The graph in .l Figure 11.20 is that of Do Drop In, a shop in the dry-cleaning industry. $18 Cost and revenues 0 30 60 90 120 150 180 210 240 270 300 330 360 390 Quantity per period FIGURE 11.20 a) At the optimal output, what price will Do Drop In charge and what will be its output? Price: $ Output: b) At the optimal price and output, what will be its total revenue, total cost, and total loss? TR: $ TC: $ Total loss: $ c) If this rm made a rational decision to continue to produce, despite the loss, average variable cost must be below what level? Less than $