Kaye want to make trail mix made up of almonds, walnuts, and raisins. She wants to mix one part almonds, three parts walnuts, and four parts raisins. Almonds cost $10 per pound, walnuts cost $12
per pound, and raisins cost $6 per pound. Kaye has $25 to spend on the trail mix. Determine how many
pounds of trail mix she can make.