A very aggressive tumor is growing according to the function N(t) = 2t, where N(t) represents the number of cells at time t (in months). The tumor continues to grow for 32 months, at which time the tumor is diagnosed. Complete parts a through 0 below. a. How many tumor cells are there at diagnosis? I: cells (Use scientic notation. Use the multiplication symbol in the math palette as needed. Round to four decimal places as needed.)