these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.
Answer from: Quest
3xy cannot be combined with the others
2x, -5x and x are like terms
Answer from: Quest
turning oxygen into carbon dioxide.
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