The following table presents treatability study data using a series of five bioreactors to examine treatment of a wastewater with a soluble (substrate) BOD of 200mg/L. Use these data to calculate the specific substrate utilization rate for each reactor. Then determine graphically the values of k (the maximum specific substrate utilization rate), and Ks (the 1/2 velocity coefficient, which is the substrate concentration at 1/2 the maximum specific substrate utilization rate)