## The average (arithmetic mean) cost per book for the $$12$$ books on a certain table is $$k$$ dollars. If a book that

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### The average (arithmetic mean) cost per book for the $$12$$ books on a certain table is $$k$$ dollars. If a book that

by Vincen » Thu Apr 15, 2021 11:21 am

00:00

A

B

C

D

E

## Global Stats

The average (arithmetic mean) cost per book for the $$12$$ books on a certain table is $$k$$ dollars. If a book that costs $$18$$ dollars is removed from the table and replaced by a book that costs $$42$$ dollars, then in terms of $$k,$$ what will be the average cost per book, in dollars, for the books in the table?

A) $$k+2$$

B) $$k - 2$$

C) $$12+ \dfrac{24}{k}$$

D) $$12- \dfrac{24}{k}$$

E) $$12k-6$$