Explain please!

7. An enzyme-catalyzed reaction proceeds by the mechanism below: E= enzyme, S= substrate, I= inhibitor, P= product and A= activator Write the enzyme balance for this mechanism. B. How many total equations will result from applying the RAPID EQUILIBRIUM ASSUMPTION? C. Using any concentrations of species in the mechanism and any of the rate constants (k 's), write ONE of the equations that would result from applying the QUASI STEADY STATE ASSUMPTION . (ONLY ONE EQUATION; ANY OF THEM ARE FINE)