Melissa went to lunch with two friends. She purchased 3 corn dogs, 2 fruit cups, and 3 drinks for $15. One of her friends bought 1 corn dog, 2 fruit cups, and a drink for $9. Her other friend
spent $12 on 3 corn dogs and 2 drinks. Which of the following systems of linear equations could
be used to find c, the cost per corn dog, f, the cost per fruit cup and d, the cost per drink?
3c + 2 + 3d = 15
C+2f+d=9
3c + 2f = 12
3c +2f+d15
c+2f+d=9
3c + d = 12
3c + 25 + 3d = 15
C+2f+d=9
3c + 2d = 12
3c + 2 + 3d = 12
C+2f+ d 15
3c + 2d = 9