A random sample of 40 students has a mean annual eamings of \$3120 and assume that the population standard deviation is $ 677 . Find the margin of error if c = 0.95 .

The table shown below gives the approximate enrollment at the university of michigan every fifty years. how many more students were enrolled at the university of michigan in 1950 than in 1900?

P= price tax is 4% added to the price. which expression shows the total price including tax?

4percent of a number is what fraction of that number? ? i really need asap