Which ordered pair is a solution to the system of equations? use the graph x - y = 4 (line a) x + y = 4 (line b)

(4, 0)

Step-by-step explanation:

The two lines a and b intersect at (4, 0).  That's the solution.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.