hey besties! answer if u want!
A medication has a half-life of 4 hours after it enters the bloodstream. A nurse administers a dose of 500 milligrams to a patient at noon.

Find the amount of medication, in milligrams (mg), remaining in the patient's body at: (Round to the nearest 10th)
a. 3 p.m. on the same day:
b. 8 p.m. on the same day:

2. The expression [tex]500 \cdot \left(\frac12\right)^{\frac54}[/tex] represents the amount of medicine in the body some time after it is administered. What is that time? (Make sure to signify am or pm)