Which shows the expression below simplified?
0.00081 ÷ (9 × 10^-4)
-0.9 × 10^-1
9 × 10^-2
9 × 10^0
9 × 10^-1
0.00081 ÷ (9 × 10^-4)
-0.9 × 10^-1
9 × 10^-2
9 × 10^0
9 × 10^-1