An item has a listed price of $75 . If the sales tax rate is %9 , how much is the sales tax (in dollars)?

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?