How would you solve x?

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

To decrease an amount by 16% what single multiplier would you use

Can you divide 25 into 4 equal groups? explain why or why not.