<PRE><B>Question 511159</B>
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$20.80 minus $17.65 is $3.15.  49 minus 28 is 21.  Hence, $3.15 was spent for 21 minutes.  $3.15 divided by 21 is then the cost per minute.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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