CCGPS AA 6.3.2 Example 3

A coffee retailer sells two types of coffee beans, the Arabica and Robusta. The Arabica coffee bean costs $9 per pound and the Robusta costs $7 per pound. Find a possible amount of Arabica and Robusta that can be mixed together to yield a quantity of coffee beans costing less than $25.50. Graph the inequality and show the possible solution on the graph.