The answer is -14 . i think
Erm I would say it comes from the same money pot (account) but not 100% sure what your tryin to ask
1=-8 l
4=100 l
7=? l
llllllllllllllllllllll
A) 15% of $32.00 is $4.80.
B) all together he will be paying $36.80.
i hope this helped, good luck!