Can someone me with this question?

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

Which graph represents the parent function of y=(x+2)(x-2)