The boundary of the lawn in front of a building is represented by the parabola . The parabola is represented on the coordinate plane. The building's entrance is located at the parabola's focus, which has the coordinates
.

The lawn's gate is located at the parabola's vertex, which has the coordinates
.

The building’s front wall is located along the directrix of the parabolic lawn area. The directrix of the parabola is
.

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.