Can someone help me please. What’s the domain range of function.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

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”?

Determine domain and range, largest open interval, and intervals which function is continuous.