Answer: ITS D
Step-by-step explanation:
Imma just answer real quikc since its timed if u want explanation just ask
The second one, your welcome
The fourth term of the binomial expansion
can be calculated using the formula for (i+1)-th term of the binomial expansion:

In order to find term
, determine that

Now

Answer: correct choice is A
Well a ratio is a fraction but with a colon so 7/12 would be 7:12