If you are asked to fill out a W-9 instead of a W-4 when you first start a job, what does that mean? What kind of taxes might you have to pay and how much are they?

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?