Sung lee studied for 4 hours. if he studied 2/3 of an hour for each class, how many classes does he have?

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.