Question

How do I do the last two?

Answer 1

I don't get how I can convert them?

Answer 2

It's the last two

Answer 3

\(\Large \begin{align} \color{black}{\text{1 yard = 9.1}\times 10^{-4}~~km}\end{align}\)

Answer 4

Yes but how would I show them cause they have it for us to write it this wa y