What is the standard deviation of the data set given below?
4,7,8,9,12

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16