becca and garrett shared the job of writing one name on each weddibg invitation. There were 135 invitations. Every minute Becca wrote 6 names and Garrett wrote 9 names until the invitations were complete. How many names did garrett write?

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”?