Posted by **Anonymous** on Thursday, June 2, 2011 at 1:25pm.

A manager schedules employees to cover evening shifts. There are 9 shifts on Monday, 11 on Tuesday, 13 on Wednesday, 13 on Thursday, 15 on Friday, 16 on Saturday, and 12 on Sunday. If each employee can work an average of 4.5 shifts, how many employees would the manager need to cover all evening shifts for the week?