Whats the fraction that is equivalent to each repeating decimal? Each fraction may be used only once.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Which is the graph of this function 3 square root of x plus one if

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”?