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Your answer is partially correct.

At time $t$ hours after taking the cough suppressant hydrocodone bitartrate, the amount $A,$ in mg$,$ remaining in the body is given by $A=9(0\mathrm{.}82{)}^t.$

a$)$ What was the initial amount taken?

mg

b$)$ What percent of the drug leaves the body each hour?

$\%$

c$)$ How much of the drug is left in the body $6$ hrs after the does is administered?mgd$)$ How long is it until only $1$ mg of the drug remains in the body?

Round to two decimal places.

hours