For a community bake sale, you purchase 12 pounds of sugar and 15 pounds of flour. Your total cost was $9.30. The next day, you purchase 4 pounds of sugar and 10 pounds of flour. Your total cost on the second day was $4.60. Find the cost of a pound of sugar and a pound of flour.

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.