Plz provide me with a graph as well plz

A single oral dose of 900 mg is adminstered and the concentration after t hours is given by C(t) = 140 (e-0.173t - 0.924t ) mcg/mL. Suppose this dose is repeated every 4 hours. (a) Find the steady-state concentration function C (t). (b) Find the maximum steady-state concentration ( Coo, max ). (c) How long after the dose is taken does this maximum occur? Enter your answer with at least two decimal places. (d) Find the minimum steady-state concentration ( Co. min ). (e) When does this minimum occur? (Note: There are two correct answers to this question. Enter the smaller time in the first answer box, then the larger time in the second answer box.) . . . Enter c values as integers and t values with two decimal places. (a) Coo (t) = ]e-0.1731 - e-0.924t mcg/ml (b) Coo.max = mcg/ml (c) tmax = hours