*PLEASE HELP!!*

Which value is not a solution of 8x^3 – 1 = 0

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68