A prescription drug’s half-life refers to how long it takes for half the drug's dose to be metabolized and eliminated from the bloodstream. the half-life of ibuprofen (the active ingredient in pain-and-fever relievers) is about two hours.the amount of drug eliminated is given by the following infinite geometric sequence: 200, 100, 50, 25, … if this pattern continues, what is the total amount of ibuprofen eliminated from the body?