A certain drug is eliminated from the body through urine.Suppose that for a dose of 10 milligrams,the amount A(t) remaining in the body t hours is...

A certain drug is eliminated from the body through urine.Suppose that for a dose of 10 milligrams,the amount A(t) remaining in the body t hours is given by A(t) = 10(0.8) t milligrams and that in order for the drug to be effective, at least 2 milligrams must be in the body

part a. Determine when (in terms of hours from administration ) 2 milligrams remains in the body. report answer with appropriate units rounded to the nearest hundredth of an hour.

Part b. What is the half -life of the drug ? report answer with appropriate units rounded to the nearest hundredth of an hour.

Part c. draw the graph of y= A(t) for T less than or equal to 0. Be sure to label the following : both axes with appropriate units, the coordinates from part A, and B and the

y-intercept