empire airlines reports the following cost data for the year. the company flew 100 private flights during the year. a group has offered empire $11,300 for a private flight to chicago for its members. revenue$ 20,300per flight wages, salaries, and benefits$ 7,300per flight fuel and oil$ 4,800per flight food and beverages$ 560per flight depreciation$ 315,000per year rent$ 265,000per year (a) what is the contribution margin from accepting the offer? (b) should the offer be accepted or rejected?