The Oriole Acres Inn is trying to determine its break-even point during its off-peak season. The inn has 50 rooms that it rents at $100a night. Operating costs are as follows:

Salaries$7,500per monthUtilities$1,500per monthDepreciation$1,300per monthMaintenance$1,760per monthMaid service$24per roomOther costs$46per room

Determine the inn's break-even point in number of rented rooms per month.