Final answer:
To find out how much cake would remain after serving 50 guests, substitute g with 50 in the expression 468-6g.
Step-by-step explanation:
The expression 468-6g models the amount of cake remaining, in cubic inches, after serving g guests. To find out how much cake would remain after serving 50 guests, you need to substitute g with the value 50 in the expression. Therefore, the amount of cake remaining after serving 50 guests is 468-6(50) = 468-300 = 168 cubic inches.
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