which of the following statements involving exponents are correct?
a. 3^(3) = 3 * 3 * 3 = 27
b. (1/2)^(4) = (1/2) * (1/2) * (1/2) * (1/2) = (1/16)
c. (1/4)^(2) = (1/4) * (1/4) = (1/16)