What is the slope of the line shown in the graph?
-2
-1
-1/2
1/2

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Solve the inequality and graph 6j - 7 < 5

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”?