C. x-3y=10
2x+2y=-4
is the right option .
X = -5, X = 1/2 Hope this helped!
2:3 would be the right feet.
First, you would have to combine 3 1/2 and 4 3/4 pounds. That would be 8 and 1/4 lbs. If she used all but 1 3/8 lbs, you would have to do 8 1/4 minus 1 3/8. That means she used 7 1/8 lbs of fruit.
The equation would be 3/ 12 + 4 3/4 = 8 1/4 - 1/38 = 7 1/8.