Hello!
I don't exactly understand your question. If you mean to be asking whether or not 1002 is geater than 100, it is.
If you mean to be asking to add it: 102 + 900 + 100 = 1102
One cookie because 4 - 3 = 1
The inverse for f(x)=2x+4 is f-1(x)= x/2 -2
Hm.. That's a hard one is the answer..10??