For which pairs of functions is (f•g)(x) = x? f(x)= x2 and g(x)
X
Of(x) =
* and g(x)
2.
X
X-2
O f(x)=
3
and g(x) = 2-3x
o Ax) x-2 and o(x) -3x+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)?