yehkbdaw99gsib yehkbdaw99gsib 30-03-2021 Mathematics contestada Which equation is true? O (8.4 x 103) = (3 x 102) = 2.8 O (8.4 x 10°) : (3 x 10) = 28 O (8.4 x 10) - (3 x 10') = 25, 200 O (8.4 x 10°) . (3 x 10') = 252,000