4c + 2b to the power of 3 when b = 5 and c= 1.2

Which statement about perfect cubes is true

What is the value of x in the following equation. -x ^3/2 = -27

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.