Help me plz you will get 10 points

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.

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)?