The standard deviation for a data set is 7. the mean is 249.
what is the margin of error for a confidence level of 95%?

Assessment items item 1 garrett is a member of a movie club. he pays a monthly service fee of $5.75 and $2.50 for each movie he rents. which expression represents how much money he will spend for renting x number of movies a month?

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Abcd is a square. what is the measure of angle bac