Astore sells two different types of coffee beans; the more expensive one sells for $8 per pound, and the cheaper one sells for $4 per pound. the beans are mixed to provide a mixture of 50 pounds that sells for $6.40 per pound. how much of each type of coffee bean should be used to create 50 pounds of the mixture?

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.