I hated doing that stuff, it was a pain for me
Here’s the full solution:
(Please mark as BRAINLIEST that would mean a lot to me)
Scientific notation means the numbers have to be between 1 and 10, so here is the answer as well as where to move the decimal
50%, if you put it into a calculator 25/50 gives you .50, move decimal 2 times to the right to get 50.