A contractor and a gravel truck driver arranged to meet at a sandpit 9 km away. In travelling to the oit, the gravel truck's average speed was 25 km/h slower than that of the contractor's car. The gravel truck took 4 minutes longer than the car to reach the gravel sandpit, as modelled by the equation 9/x-25 - 9/x = 4/60 to the nearest km/h , what is the average speed of the car

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.