Previous Problem Problem List Next Problem (4 points) t (hours) Q (mg) 0 800 520 2 338 3 219.7 The table above represents the quantity Q , in milligrams, of a certain drug in the bloodstream at time t hours since the drug was administered. Construct an exponential model to represent Q using the data in the table. Use your model to predict the number of milligrams that will be in the bloodstream after 6 hours. (Express your answer in milligrams rounded correctly to the nearest tenth.) milligrams