An inhibitor (I) is added to the enzymatic reaction at a level of 1.0 g/l. The following data were obtained for Km=9.2 g S/l.

S (g/l) 20 10 6.67 5 4 3.33 2.5
v (g/l-h) 0.909 0.658 0.493 0.40 0.333 0.289 0.227

A) Find Km,app.