Select the correct answer.
Which equation is equivalent to the given equation?
X^2 – 6x = 8

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

The parabola opens: y=√x-4 (principal square root) up down right left

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”?