80 10 5 2 July 8, 2019 16 32 64 128 80 5 х 2 10 Hitunglah 80 10 5 2 80 days from 5 10 24 Pxe 80 10 8 ec 2 5 set 7x 5 10 2x )= 80 80 20 x 20 10 5
