What’s equivalent for x to the power of -3 that uses positive exponents?

A. x to the power of -3
B. x to the square root of 3
C. 1 over x to the power of 3
D. 1 over x to the power of 1/3

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas

I’m not good at math can i have ? ?