Just multiply the sum of the numbers then divide
$2,620
$0,750
$0,630
$0,050
$0,090
+$0,425
=$4,665
Well, it depends what shape you are using the volume formula for. If it's for a square (I'm assuming) then the volume formula would be:
Side^2
C. The outlier because it doesn’t fit with the rest
8*.8=6.4
4x+6.4=40
40-6.4=33.6
33.6/4=x
8.4=x
Hope this helps :)