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margos grade average in math was 92. then for seven months, her average dropped an average of five-eighths of a point per month

Respuesta :

Since3122015
[tex]92-7*\frac{5}{8}\\92-\frac{35}{8}\\92-4\frac{3}{8}\\82-\frac{3}{8}\\81\frac{5}{8}[/tex]

81 5/8

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