Ineed on this question i know so much in one hour ( don't mind hand writing i'm rushing )

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”?

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be

Have yall ever just farted and was like, i farted.