Mario and his friends ordered 3 pizzas. each pizza was sliced into 8 pieces. they ate 21 slices. how much pizza did they eat? write your answer as a mixed number.

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

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”?