Answer:
D
By substitution,
418,400= 4.655 x [tex]10^{-12}[/tex] x [tex]c^{2}[/tex]
Now we have to get the c^2 on the left side of the equal sign.
Then, combine the other terms (not the 10^ -12)
Other ways you could have done this:
Google the speed of light, and combine the terms in the answers to see which equals the speed of light. :)
Hope this helps! Brainliest plz!
Saffron