Ineed on this question plz answer me fast

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 facts are true for the graph of the function below? check all that apply. f(x) = log8 x. (30 points pls )

What value of x is in the solution set of –5x – 15 > 10 + 20x?