text: A graphing calculator is recommended A drugh administered to a patient, and the concentration of the drug in the bloodstream is monitored. At time t 20 (in hours since giving the drug the concentration (in mg/) is given by c) Graph the finethin e with a graphing device (Round your answers to two decimal places.) (a) What is the Nghest concentration or drug that is reached in the patient's bloodstream? V Tig (b) What happens to the drug concentration after a fong period of time?