A 40-lb container of peat moss measures 14 20 30 in. A 40-lb container of

Question:

A 40-lb container of peat moss measures 14 × 20 × 30 in. A 40-lb container of topsoil has a volume of 1.9 gal.
(a) Calculate the average densities of peat moss and topsoil in units of g/cm3. Would it be correct to say that peat moss is "lighter" than topsoil? Explain.
(b) How many bags of peat moss are needed to cover an area measuring 15.0 ft × 20.0 ft to a depth of 3.0 in.?