Benny sold half of his comic books and then bought 6 more. He now has 17. How many did he begin with ? i need to write it in numerical form

In 2000 the average price of a football ticket was $48.28. during the next 4 years, the proce increased an average of 6% each year.a) write a model giving the average price (p), in dollars, of a ticket (t) in years after 2000.b) graph the model. estimate the year when the average ticket price was about $60