You are a real estate agent thinking of placing a sign advertising your services at a local bus stop. The sign will cost $4,900and will be posted for...

You are a real estate agent thinking of placing a sign advertising your services at a local bus stop. The sign will cost $4,900and will be posted for one year. You expect that it will generate additional revenue of $833 a month. What is the payback period?

The payback period is ______ months.  (Round to one decimal place.)