A fence consist of sections built in a row. the figure above shows the first two sections of the fence. each section is identical and consists of two horizontal boards between consecutive vertical posts. each post cost $ 8 and each board coat $6. If the total cost of the boards and post was $ 208. how many post are in the fence?

Each section is two posts at $8 = $16.00, plus two horizontal boards at $6 = $12.00. $16 + $12 - $28.00

Divide $208 by 28.