The number of homes sold each year by a realtor is normally distributed with a mean of 54. If the realtor sold 36 homes last
year with a z score of -2.4 what is the standard deviation?

In the rectangle below ac=30 units what is de

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it. find the area of the sidewalk.