The answer is r = p/2n - x/n
I dont know :(
i actually tried it but im not good with that :)
<span>In geometry, definitions are formed using known words or terms to describe a new word. There are three words in geometry that are not formally defined. These three undefined terms are point, line and plane. Undefined terms have not been defined, and defined are answered. They are terms that have a relationship with the point od discussion. :)</span>
Form the ratio 560/2800 and then mult. the result by 100%:
560
--------- * 100% = 20%
2800