11 choose 7 is equal to 11 choose 4. 11*10*9*8/4/3/2=330.
Answer:
C is the answer
Step-by-step explanation:
It's very obvi lol
believe the answer is 8 because sulfur has 6 valence electrons and when it becomes sulfide it gains two electrons making it 6+2=8.
The "I"'s r variables, now u do 2-5 which sequels -2. now u do 4+7 and that ='s 11. now I think u take 11 and -2 and u subtract 11-(-2). or it could be change the negative into a positive and add them together.
4u+3c-6 is thats what its asking for? just puting the same variables together