The table below represents the equation y= 500(1-0.052)^x , which represents the amount of a drug left in a patient's bloodstream over time. The y -values represent time in hours, and -values represent the amount of the drug left in milligrams. Part A: What is the initial dosage of the drug in milligrams?

Part B: How much of the drug has been eliminated after 4 hours? Show your work.

Part C: Find the amount of the drug left in the patient's system after 24 hours.