My question, as follows:
If f 64=25 sq KM how many times would 63 equal that #?
It appears as if MathPerson345 means this:do you mean function of 64 is 25 sqkm and how many sqkm would be function of 63?
$\displaystyle 64 \times f = 25 Sq.Km. $
so
$\displaystyle f = \frac {25}{64} $
and MathPerson345 wants
$\displaystyle 63 \times g = 25 $
the revised value is:
63 x 0.386825396 = 25