mstha388 mstha388 31-01-2021 Mathematics contestada lets simplify6.4×10 (-5)×3.6×10 (9) divide by1.6×10 (10)×1.8×10-3b 6.7×10 (-11)×2.5×10 (20)×3.6×10 (15) divide by (3.35×10^6)2