<PRE><B>Question 815550</B>
c = 3a
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7a + 3c = 6000
7a + 3*3a = 6000
7a + 9a = 6000
16a = 6000
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a = 375
c = 1125
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total attendance:
a + c = 1500
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Calculate and graph the linear regression of any data set:
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