Final answer:
To find the weight of the roast in grams from pounds and ounces, convert all to a single unit and apply the conversion factor.
Explanation:
To convert the weight of the roast from pounds and ounces to grams, you first need to convert pounds and ounces to a single unit, either all pounds or all ounces.
1 lb = 16 oz, therefore, 5 lb 7 oz is equivalent to 5 x 16 + 7 = 87 oz. Next, convert this total weight in ounces to grams using the conversion factor: 1 oz = 28.35 g.
Therefore, a 5 lb 7 oz roast weighs approximately 2476.8 grams.
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