What is the answer to number nine also how do i solve for it? : )

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft

Anne plans to increase the prices of all the items in her store by 5%. to the nearest cent, how much will an artist save if the artist buys a canvas and a frame that each measure 24 by 36 inches before the price increase goes into effect?