Scores on an exam are normally distributed with a mean of 76 and a standard deviation of 10. in a group of 230 tests, how many students score below 66?

If u give wrong answer ill report u : )

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd