Given the system of linear equations y = -5 y = 3x - 2 part a: graph the system of linear equations. part b: use the graph created in part a to determine the solution to the system. part c: algebraically verify the solution from part b.

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”?