Researchers are testing a new drug. In one patient, the mass (in milligrams) of the drug in her body after t hours is modeled by the expression:
What does the number 0.67 represent in this model?
A.
The initial mass of the drug in the patient’s body
B.
The proportion of the drug that leaves the body every hour
C.
The mass of the drug that leaves the body every hour
D.
The proportion of the drug that remains in the body after an hour