QUESTION 2 The amount of adrenaline in the body can change rapidly. Suppose the initial amount is 15 mg. Find a formula for A, the amount in mg, at a time t minutes later if A is decreasing by 15% per minute. ' A = 1S(0.8S)' A =1s(1.1s)' A =15 -0. 151' A= 15 +0. 151