J (9 (5)) = Question 5: (5 points) A rain drop hitting a lake makes a circular ripple. If the radius, in inches, grows as a function of time in minutes according to r (t) = 30vt + 2, find the area of the ripple as a function of time. Find the area of the ripple at t = 2. Enter the exact answer. For the number 7, you can either type pi or you can click the button with 7 on it. Do not enter any commas in your answer. A = in 2