Find the volume of the figure with the pyramid removed

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”?

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

Which graph represents the linear function below? y-3=1/2(x+2)