2a. The doubling time for dorkism is 4 weeks. That is, with a given amount of dorkism in your system, it will double every 4 weeks, so you'll be twice as dorky as you were 4 weeks ago. Let D(t) be the function name and the initial value be D, to show a model for this in weeks. 2b. How much dorkiness would you have at the end of a sixteen week semester?