7 4 4 5 1 9 July 8, 2019 16 32 64 128 7 4 4 5 1 9 what is the mean 7 9x 4 9x 1 4 5 12 4 4 5 x 1 1 9 x 1 7 8 What does 7 4 4 5 1 9 mean
