4 5 6 8 11 July 8, 2019 16 32 64 128 Find the average of 4 5 6 8 and 11 4 6x9 5 6 9x120 8 4x3 12 6 11 3 11x 8 4 )/( 5 6 )- 4 4 phần 9 11 8 5 6
