4. Juan took a pencil and drew two squares, the next row he drew six squares, then the third row he drew eighteen squares. If he kept this pattern up (and had the space), how many
squares would he draw in the 11th row?
a. f(n)= 3(2)"+1; 3072 squares b. f(n) = 2(3): 118,098 squares
c. f (n) = 2(3): 354, 294 squares d. F(n) = 3(2)-1; 6, 144 squares