Y = x + 6
y = -3x + 6
put the system of linear equations into standard form
x - y = -6
-3x - y = -6
solution:
x = 0
y = 6
I don't know all of them but I can tell you that B and E are answers that you should check.
The percentage would be 73% but idk the rest
Answer:
(20 + 60) + (3 + 7) + (0.4 + 0.3) + (0.05 + 0.01)