A room measures 12'8" by 10'9". Carpeting costs $45.98/m². A customer will
have to purchase 10% more carpeting than floor area due to waste and he cannot
purchase partial square metres. What is the minimum cost of the carpeting?

(hurry! ) which expression is equivalent to the following complex fraction?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Which statement justifies why angle ebc measures 90?