The answer is -60. this is because the signs implemented in front of numbers give it a sort pattern .
when there are two additions the last number after the positive sign will give a positive number 1 greater than the initial number for example + 5 + 6. Answer afterward will be + 7 and for negative sign eg: - 7 - 8 in the question will give the answer -8 the same number after a negative (-) sign .
Hope this helps
The volume is 35 inches.
hope i helped
Not 100% sure but I think that it is 14.6
Is there a picture of the graphs?
If he has 6 friends they will all get 8 cards