Write two division equations for each multiplication equation. 15* 2/5 = 6
6* 4/3 = 8
16* 7/8 = 14

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”?