21 22 23 20 A rectangle with an area of x2 - 4x - 12 square units is represented by the model. What side lengths should be used to model the rectangle? e Of O (x + 2) and (x-6) (x + 6) and (x - 2) O (x + 2) and (x - 10) O (x + 10) and (x - 2) +2 -x-x-x-x-x-x +X - 1 - 1 - +х 1 - - - Submit Next Save and Exit Mark this and return javascript:void(0);​

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)?