15 x 100 40 July 8, 2019 16 32 64 128 15 100 x 400 15 100 x 4000 15 100 x 40000 15 40 x 100 1 15 over 40 x 100 15 divided by 40 x 100 15 x 40 15 x 400 15 x 10
