(Solved): What is the concentration detection limit for ethanol on a GC where the slope of a calibration model ...

What is the concentration detection limit for ethanol on a GC where the slope of a calibration model is 530%V^(-1) and a low-concentration sample gives a standard deviation of (+)/(-)57A.U. ? What is the %volume of ethanol in an unknown sample of ethanol that gives a peak area of 1013 A.U. when analyzed with a calibration model having the least-squared line of best fit shown below? y=53.00x+0.129