Aclothing store charges $25 for 4 t-shirts. a student said that the unit price is $0.16 per t-shirt. this student made a mistake.  explain the mistake.  find the correct unit price for a t-shirt.

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.