A county wants to bulld one centially$-$located processing faclity to seme the count's four recycling diop$-$off locations. The four diop$-$ofs have characteristics as given in the table below. What is the approximate center of gravity of these four locations? $($Round answer to two decimal places$)$

$\backslash$table$[[$Location$,x-$coordinate,$y-$coordinate,Tonnage$],[$pe$-$fif,$5,7,260],[$en$,8,40),],[6,\frac{25}{7},\frac{7}{5},50]]$

A$.(9\mathrm{.}25,9\mathrm{.}25)$