A sheet of paper is cut into 2 same-size parts. Each of the parts is then cut into 2 same-size parts and so on. a. After the 6th cut, how many of the smallest pieces of paper are there? b. After the nth cut, how many of the smallest pieces of paper are there? a. There are nothing of the smallest pieces of paper after the 6th cut. (Type your answer using exponential notation.