How has the printing press impacted society today?

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

How do i do this activity, is appreciated

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”?