Wave Runners is a boat rental business that has the following costs over the relevant range of 17,000 to 23,000 operating hous for its boats: Required: 1. Complete the schedule of the company's total and unit costs. (Round "Cost per hour" answers to 2 decimal places.) 2. Assume that Wave Runners rents it boats for $168 per hour and had 20,000 hours of rentals last year. Prepare a contibution format income statement for the year. 2. Assume that Wave Runners tents it boats for $168 per hour and had 20.000 hours of rentals last year. Prepare a contribution format income statement for the year