Angela's average for six math tests is 87 on her first four tests she had scores of 93, 87, 82, and 86. On her last test, she scored 4 points lower than she did on her nth test. What scores did Angela receive on her fifth and sixth tests?
Fifth test - 85; sixth test=81
fifth test = 35; sixth test =89
fifth test 90; sixth test=86
Fifth test89; sixth test=85