A store sells two types of coffee beans: Arabica and Robusta. A bag containing 2 pounds of Arabica and 3 pounds of Robusta costs $29. A bag containing 4 pounds of Arabica and 1 pound of Robusta costs $33. What is the cost per pound of Arabica coffee beans?
$5.50
$6.50
$7.00
$7.50
