Can someone please help me out with this

Use set buikder notation to represent the following set: {, -2, -1, 0}

Witch represents the inverse of the function f(x)=1/4x-12

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