PLEASE HELP 20 POINTS What are the Domain and Range of the graph in interval notation? The domain is ( , )

The range is U​

99 points at a zoo, the leopard pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 12 m. the inner edge of the sidewalk is a circle with a radius of 8 m. (1 point for showing all of your work) a. write and simplify an expression for the exact area of the sidewalk. (1 point for the answer) b. find the approximate area of the sidewalk. use 3.14 to approximate π. (1 point for the answer)

Which function is represented by the graph

Find the multiplicative inverse of 8-12i