A first-class letter can weigh up to 13 ounces before additional charges must be added. Estimate how much more weight can be added to a letter that weighs 10 1/

3 answers

once is enough, especially when you include typos!
a lot actually but stop ASKING solve on your own

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ANSWER -- 2 1/2
Additional weight that can be added to a letter weighing 10 1/2 ounces is approximately 2 1/2 ounces.