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​58.​Anna and Maya are competing in a dance tournament where dance moves are worth a certain number of points. If a dance move is done correctly, the dancer earns points. If a dance move is done incorrectly, the dancer loses points. Anna currently has 225 points. ​a.​Before her dance routine ends, Anna earns 75 points and loses 30 points. Write and solve an expression to find Anna’s final score. ​ ​b.​Maya’s final score is 298. Which dancer has the greater final score?