Step 1.Calculate volume of peat moss

$\mathrm{V}=14\times 20\times 30{\mathrm{in}}^{3}\phantom{\rule{0ex}{0ex}}\mathrm{V}=840\overline{){\mathrm{in}}^{3}}{\left(\frac{2.54\mathrm{cm}}{1\overline{)\mathrm{in}}}\right)}^{3}=137660{\mathrm{cm}}^{3}$

Step 2. Calculate the mass of the container

$40\overline{)\mathrm{lb}}\left(\frac{454\mathrm{g}}{1\overline{)\mathrm{lb}}}\right)=18160\mathrm{g}\phantom{\rule{0ex}{0ex}}$

A 40-lb container of peat moss measures 14x20x30 in. A 40-lb container of topsoil has a volume of 1.9 gal. Calculate the average densities of peat moss and topsoil in units of g/cm^{3}

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