I can not seem to get through this 9question.

The concentration of a drug in the body decrein in exponentially after a dosage is given. In one clinical study, actual subjects averaged 11 microgramsindiller (meg mil) of the drug in their blood plasma 1 is alter a 1009-my dosage and 3 miaogames dosage ") Find the value k, and write a equation for an exponential function that can be used to predid the concentration of the drug. in microgramsmi diner, I hours attor a 1804-my disage. by Estimate the concentration of tho drug 2 hr after a 1040-mg desaga. To relieve a fever, tha concentration of the drug should go no lower than 2 mogink. After how many hours will a 1010-mg dosage drop to that level? al k -| | [Round to three decimal places as needed.) Choose the corset equation below. OA PI)- 13200 2 -0.3251 OB. PM) = 17.2002 - 1.3791 OC PM- 152 e - 1.650 OD. PM= 17 2062 - LESH DE PU)= 152 p -03251 Of. PI) = 152r -Q484 OG. PU= Ile - 1323 b) The combinination of the drug after 2 hr will be about mepink (Found to one decimal place as needed. ) el Aller shran | The the concentration of the anne wil have direned le > monknil