Et-tetromino is the shape made by joining four lxl squares edge to edge,
as shown below. a rectangle has dimensions 4a x 4b, where a anu pare
whole numbers. prove that the rectangle can be tiled by these t-tetrominoes
so that it is covered exactly without gaps or overlaps.
locouse in
your

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)?