Answer
$42,195\ m$
$26.22\ mi$
Work Step by Step
We use stoichiometry, making sure that all units cancel out to $m$, to obtain:
$42.195\ km \times 1000\ m/km = 42,195\ m$
We use stoichiometry, making sure that all units cancel out to $mi$, to obtain:
$42.195\ km \times 1\ mi/1.609\ km=26.22\ mi$
