Diego bought some raisins and walnuts to make trail mix.

Raisins cost $4 a pound and walnuts cost $8 a pound Diego spent $15 on both ingredients. Decide if each pair of values could be a combination of raisins and walnuts that Diego bought



• 4 pounds of raisins and 2 pounds of walnuts


• 1 pound of raisins and 1. 5 pounds of walnuts



• 2. 25 pounds of raisins and 0. 75 pounds of walnuts



• 3. 5 pounds of raisins and 1 pound of walnuts