When is a < |a|?
awhen a > 0.
bwhen a > 0.
cwhen a = 0.
dwhen a < 0.
e never.
f when a is a fraction.

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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”?

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided