Jillian knits hats for her family and friends in the first week she knits 4 hats. The next week, she has some help and together they knit four times as many hat The following week, she has even more help, and they knit four times as many hats as the week before the fourth week Jillian her friends and family knit four times as many hats as the third week how many hats will they knit in the fourth week.
16
32
64
256