2. Expediate Delivery currently delivers packages for $ 9 each. The variable cost is $ 3 per package, and fixed costs are $ 75,000 per month. Compute the break-even point in both sales dollars and units under each of the following independent assumptions. a. The costs and selling price are as just given. b. Fixed costs are decreased to $ 60,000. c. Expediate desires net income of $90,000. (Fixed costs are $75,000.)