Simplify (6 to the power of negative 2), (3 to the power of negative 3), (3 times 6)the power of 4.

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

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