Professor Wang Xuebin saw a periodical and asked him to hand in a paper. If the page fee is 5,500 yuan, there will be a page fee of 5,500 yuan. If Professor Wang Xuebin sees that the page fee for submitting a paper in a journal is 5,500 yuan, he needs to pay 5,500 yuan to publish the paper. Some periodicals charge a page fee to pay for editing, typesetting, printing and publishing.