9.647 x 10^7 should be the unrounded answer
The given triangle has vertices

After a dilation with a scale factor of

about the origin , the image triangle will have vertices
See attachment for graph
7.5/18=15/x
Cross multiply
7.5x/270
Divide both sides by 7.5 to get x alonex=36
Hope that helps! :)
There are 38 chickens and 16 cows.
38 times 2 equals 76 and 16 times 4 equals 64. 64 plus 76 equals 140.