22. If a company is operating at a profit: A) its contribution margin will not be equal to its fixed expenses B) its margin of safety will be equal to zero C) its fixed expenses will be equal to its variable expenses D) its selling price will be equal to its variable expense per unit E) all of the above 23. FrisCo has just purchased a new piece of equipment with the following characteristics: Purchase cost of equipment Annual cost savings that will be provided by the equipment Life of equipment $30,000 5,000 5 years The payback period would be: A) 6 yrs B) 5 yrs C) 7 yrs D) 2 yrs E) 4 yrs