The formula for the sum s of the first n terms in a geometric sequence is given by \large s=a\left(\frac{1-r^n}{1-r}\right), where a is the initial value and r is the common ratio. a medicine is prescribed for a patient to take 700 mg every 12 hours for 5 days. after 12 hours, 4% of the medicine is still in the body. how much of the medicine is in the body after the last dose?