please help me solve this

(2 points) Let A={17,20},P(A)= Note: Type { for empty set. You have attempted this problem 0 times. You have unlimited attempts remaining. (2 points) Let A={0,{0,9},{9},}. Answer each of the following questions. 1) A= 2) Which of the following statements are true? There may be more than one correct answe A. 0A B. {9}A c. {0}A D. {0,9}A E. 9A F. {9}A G. {0}A H. A 1. 0A J. A K. {0,9}A L. 9A