The Lake Shore Inn is trying to determine its break-even point. The inn has 50 rooms that are rented at $68 per night. Operating costs are as follows: Salaries $9,307 per month Utilities $1,471 per month Depreciation $1,168 per month Maintenance $204 per month Maid Service $9 per room Other Costs $29 per room Determine the inn's break-even point in number of rented rooms per month