Soon after taking an aspirin, a patient has absorbed 280 mg of the drug. after 3 hours, only 35 mg remain. find an exponential model for the amount of aspirin in the bloodstream after t hours.

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120