The graph below shows the cost of pens based on the number of pens in a pack. What would be the cost of one pen?
$0.57
$1.75
$5.50
$6.50
![The graph below shows the cost of pens based on the number of pens in a pack What would be the cost of one pen 057 175 550 650 class=](https://us-static.z-dn.net/files/dbb/65fb21634b7debc570096d804e20d883.gif)