By using estimation techniques, determine which of the following is the heaviest and which is the lightest: a 10-lb bag of fertilizer, a 10-kg bag of rice, or 2 gal of olive oil (density = 0.918 g/cm³).

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Convert the weight of the 10-lb bag of fertilizer to kilograms using the conversion factor 1 lb = 0.453592 kg.

The 10-kg bag of rice is already in kilograms, so no conversion is needed.

Convert the volume of 2 gallons of olive oil to liters using the conversion factor 1 gal = 3.78541 L.

Convert the volume of olive oil from liters to cubic centimeters using the conversion factor 1 L = 1000 cm³.

Calculate the mass of the olive oil using the formula mass = density × volume, where the density is given as 0.918 g/cm³, and convert the mass from grams to kilograms using the conversion factor 1 kg = 1000 g.

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