Xavier and carlos have a bet to see who can get more "friends" on a social media site after 1 month. carlos has 5 more friends than xavier when they start the competition. after much work, carlos doubles his amount of friends and xavier triples his. in the end they have a total of 160 friends together.

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.