Question 1156935
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(1) What kind of equation do you want?  Linear? Exponential? Something else?<br>
(2) Do you want the equation to be determined by formal mathematical means?  Or is an informal approximation enough?<br>
(3) "5 times greater than" the original number means the original number, plus 5 times the original number; that makes 6 times the original number.  Do you really mean 5 times greater (6 times as large), or do you mean 5 times as large?<br>