The website contains wrong answers to student practice problems. I've now suggested to correct these wrong answers, at least those I spotted myself. However, I couldn't do that. I couldn't even leave a comment with the correct solution. After a short chat with the customer service, I was told that it is impossible to do. So, my strong advice is to stay away from this website. It looks like a scum. They don't allow you to try it before purchase, and after the purchase, it turns to be useless. Plus bear in mind that they don't refund the subscriptions even 10 minutes after the purchase.[EDIT] I have now encountered a several more sites which are twins of Chegg, for example Bartleby. If you are looking for an answer to your study problem in Google, you'll always arrive to one of these sites, where the solution is blurred and you're asked to pay to see it. I suggest for everyone who arrives to such sites, immediately leave them and not to pay anything. They are clearly scum.
