You are told that a professional cyclist eats around 5,120 calories every day of the tour de abroad. estimate how many calories a cyclist would eat during a 21 day race.

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”?

An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2