Last year, a stereo system sold for $450. This year, it sold for $382.50. What is the percent of change from last year to this year? U
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Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Which graph has a rate of change of zero

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?