X + y = 33
x - y = 9 Add the 2 equations together
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2x = 42 Divide both sides by 2
x = 21
Use the original equation and plug 21 in for x, then solve.
x + y = 33
21 + y = 33
Subtract 21 from both sides
y = 12
One list had 21 items on it and the other list had 12 items on it.
-x + 10 = 3x + 22
-12 = 4x
x = -3
The 8oz because double that is 16oz and the price doubled is 2.72
I think it's either A or B leaning more kinda towards A
