If 5/3% of some number is 4.75, then 1/3% of that number would be 4.75/5. Then multiply that answer by 3 to get 3/3=1% of the number, and finally multiply by 100 to get 100%.
The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes.
