The grid provided is 10 x 10. So, because the oil is 40% of the liquid in the recipe, you should shade 40 / 100 squares of the grid to represent the 40%.
To find the number of cups of liquid that are not vegetable oil, we can set up a proportion.
Because going up would be moving along the y-axis, then you would add 5 to the Y value which was 2 so therefore, if you move up 5 you'll be at (7,7).:)