Convert 6992 to 2 significant factors

In two fractions have the same denominator but different numerators,which fraction is greater? give an example

Construct the graph that models the given situation

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?