Question

The function c=23(n-1)+37 represents the cost c in cents for mailing a letter weighing n ounces. Which statement is true?

a the weight of a letter depends on the cost.

b the number of letters mailed depends on the total number of ounces of the letters.

c the cost to mail a letter depends on its weight.
d each letter ocsts 37 cents an ounce.

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