What is 500,000-437,981 step by step

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

What is the equivalent fraction for the following fraction using 5 as the multiplier? 1/2

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)?