B. 855/4.5 is 190. Out of all four choices, 475 cal / 2.5 servings is the only which leave you 190.
2 because you do what is in parenthesis first :)
2x + y = 3
3x - y = 12
Add both equations
5x = 15, x = 3
2(3) + y = 3
6 + y = 3, y = -3
Solution: x = 3, y = -3... or (3,-3)
The blue jar contains the most paint, hope this helps.
