If a bag of chips is 1.29 and the drink cost 0.89 how much will it cost with a coupon for 0.75

Need solving this second acceleration problem.

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.

Could someone me with this question i’ve been stuck on it for 20 minutes