Monopoly question..pls help

Posted by Shefali on Apr 24, 2014; 11:31am
URL: http://discussion-forum.276.s1.nabble.com/Monopoly-question-pls-help-tp7587714.html

Suppose that demand curve of monopolist is p=20-4x and cost is C=4x+2.If government imposes a tax @20% of sales find output and price.

Please help me with this.My answer is not matching.Thanks.