A set of history exam scores are normally distributed with a mean of 83.2 points and a standard deviation of 8 points.
What proportion of exam scores are between 82 and 89.2 points?
You may round your answer to four decimal places.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points