Anyone wanna do this with me?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

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”?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?