WMEJ is an independent television station run by a major state university. The stations broadcast hours vary during the year depending on whether the university is in session. The stations production-crew and supervisory costs are as follows for July and September.

Cost Item	Cost Behavior	Cost Amount			Broadcast Hours during Month
Production crew	Variable
July		$	4,875			390
September			8,000			640
Supervisory employees	Fixed
July			5,000			390
September			5,000			640

3. What will be the cost per broadcast hour in December for each of the cost items?