The sum of John's and Liza's age is 21. If John is three years
younger than Liza, how old are John and Liza?
Express your answer as an ordered pair (x, y) where John is x
and Liza is y.

Which fraction below is equivalent to 10/12?

Which expressions are equivalent to -6 + 3m

Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be