A cylinder and its dimensions are shown below One equation for calculating the volume of a cylinder is V=Bh, where B represents the area of the base of cylinder. Which expression can be used to find the value of B, in square centimeters, for this cylinder?

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”?