This means that for every 10 of whatever measurement of sugar there will be 3 of that measurement of flour
70 oz of sugar / 10 = 7
3 (ratio of flour) times 7 = 21
21
They both are solutions.
If you plug the numbers from the ordered pairs in for x and y you will see that they equal 11.
3(3) - (-8/4) = 9 + 2 = 11
3(4) - (4/4) = 12 - 1 = 11
4x is the answe because if you divide the pizza by a burger it will wok