1. A patient going into surgery has been injected with 250 milligrams of Ativan, a drug commonly given to ease anxiety. The amount of the drug in the body decreases at a rate of 33% per hour. Create a function that models the number of milligrams of Ativan in the patient's system 1 hours after being injected with the drug. 2. Using the equation you created, algebraically, determine to the nearest hour, when the patient will have 20 milligrams of Ativan left in their system.