Rewrite the equation to solve for the speed of light, c. use rational exponents instead of roots.

E=mc^2 is one of the most recognizable equations in the world. In this task, you’ll attempt to understand it better. Let’s start with what the letters mean. The letter E stands for energy, the letter m stands for mass, and the letter c stands for the speed of light. The meaning of this equation is that you can completely convert mass into energy. 

c^2  = E/m
c = (E/m)^(1/2)

The correct answer is -3.9> -4.5 gucci playa