Answer:
400/1000×100%
40% is the percent of decrease from 1,000 to 400.
I'm assuming this means 3g+45=4g=84.
So, just move like numbers near each other. This way, you get 4g-3g=45-84, which means g= -39.
No, -4 is not a natural number. It is a negative, the only natural numbers are positiv numbers. Hope this helped!
