Question 1 2 pts How much of an initial investment is needed to attain a value of $500,000 if the investment is at 8% compounded continuously for 25 years? tA (Enter the dollar amount in the first box, and then the cents in the second box rounded to the nearest penny (cent)) Question 2 2 pts What interest rate is needed to quadruple (or x4) the value of an initial investment if the interest is compounded quarterly for 30 years? Enter as a decimal, and round to three decimal places) D Question 3 2 pts A certain medication has an initial dosage of 78 mg. After 3 hours, 48 mg of the medication still remains in the patient's bloodstream. Find the decay constant, r, for this continuous function, and use it to find the number of hours for the half-life, h, of the medication. (Enter as a decimal, and round to three decimal places) h hrs. (Enter as a decimal, and round to three decimal places)