At 12:00 midnight, a patient is hooked up to an IV for eight hours. An Initial dose of 76 mg of the drug is immediately injected into his bloodstream. After midnight, the IV is set up so that the amount of the drug in the bloodstream is given by f(1) = -0.91 + 17.71 + 76 mg. where t is the number of hours after midnight. How quickly (in my per hour) is the drug entering the patient's bloodstream at 6:00 am? It is entering the bloodstream at mg per hour. if necessary, round to two decimal places. Do not include units