He won about 25% because 6/12 would be 1/2 and 3 is 1/2 of 6 or a 1/4 so 25%
I believe that would be 49
3574 it’s the number of books each kids has
I believe its the second one.......the last one is eliminated based on the y intercept......
plug the x and y into the equations and see which side equals.....
