I had a difficult time choosing blip from my bunch today. Almost went with the collage I made, but this one... a forest fire victim... deserved to be on its own.  There's been a lot of change were the forest fire raged. Lots of green growing. Nature is claiming the area again. I took one photo with new trees growing right beside an old blacked twisted tree. It was quite the contrast. But, as said before, the shell won.
I finally asked for help with the math and a close friend of mine came to my rescue so...math stress has become weaker... I still have a lot to study, but at least I have the 'recipe' for why the answer to the question is that and not this.