Could someone help me i am struggling.

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

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”?