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Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges