So the neat number is all the numbers added together I'm pretty sure or it's either all the numbers added together times the amount of numbers
There are
It was an increase of 15%
You would simply do -102-125 to give -227 feet below the surface
To find the number of feet she jumped you have to divide 156 by 12 because there are 12 inches in a foot
So 156/12 =13
So she jumped 13 feet