Question

Hey friends answer this please
Please give the letter choice

Answer 1

`1.2\cdot 10^(-3)-2.0\cdot 10^(-4)=1.2\cdot 10^(-3)-0.20\cdot 10^(-3)\\\\=1.0\cdot 10^(-3)`

The appropriate choice is ...

... D) 1.0×10⁻³ inch