A carpet store charges $20 per square yard of carpet after an initial installment fee. A customer paid a total of $800 for 30 square yards. Write an equation that gives the total cost of buying and installing a carpet as a function of the area of the room (in square yards).

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.