29.1% http://www.internetworldstats.com/stats7.htm That statistic is not for the percentage of websites in English, but the percentage of internet users who speak English as their primary language. I am unable to find a statistic for percentage of websites in English.
About 500,000,000 people speak English as a first language, so that would be around 7% of all humans speak English as a first language. As any other language but first, it is estimated that 2,100,000,000 humans speak English, or about 30%.
Old English. Many words come to us from a mixture of French and a Germanic/ Viking language. The word “beef” is one example of a French words we use. The nobility didn’t speak English, but French. Even today the Queen’s menu is in French.