Can someone please help me with math.

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

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

Combine like terms to make a simpler expression 3z+z