From 2006 through 2012, the average weekly income of a employee in a certain company is estimated by the quadratic expression 0.18n²+6.48n+3240, where n is the number of years of after 2006. In what year did the average weekly income of an employee become php 3,268.80?

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Answers

2016-07-24T13:28:58+08:00
The employee weekly income is 3,000
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