Two competing gyms each offer childcare while parents work out gym charges $9.00 per hour of childcare gym b charges $0.75 per 5 minutes of childcare which comparison of the child care costs is accurate

Don't know how to find x given these segment lengths

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?

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”?