Answer:
I think its 40 if i did it right Ill show you how i did it
Step-by-step explanation:
First I added 12+12 and the is 24.
The I added 8+8 and that was 16.
Lastly I added 16+24= 40
( 2a2 - 2b - 1 ) Is the answer when simplifying the expression.



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Answer: Cards left = 96 ------------------------------------
Improper 7/4 and mixed number 1 3/4