Let the relations S and R on {1,2,3} be given by: S = { (1, 3), (2,1) } R = { (1,1), (1,3), (2,3) }. Find R ∘ S in set notation.

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.