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Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?
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Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)
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What is the factored form of the following expressions? d^2 β 13d + 36
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2.4x10^2+7.6x10^-1 awnser quick...
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