Urgent! : which property justifies this statement?     if x + y = z and z = x + 4, then x + y = x + 4.   a. symmetric   b. distributive   c. transitive   d. associative

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Multiplying an even number of negative numbers gives an answer that is choose from:

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)?