30 joey drives a golf cart when he needs to monitor the security of his neighborhood. he can cover the 40 miles of streets in his neighborhood in 2 hours. what unit rate expresses the speed of joey's golf cart per hour? 10 miles per hour 15 miles per hour 20 miles per hour 30 miles per hour

You work for a landscape company that just got a contract to re-mulch a park. the area that needs mulching is 30 feet by 60 feet. they want a 3 inch layer of much on the area. the company has bags of mulch that cover 2 cubic yards that cost $4.00 per bag. how much will it cost the consumer just in materials to re-mulch the area (round to the nearest dollar)?