Answer:
are you looking for the substiution
Step-by-step explanation:
Answer: A
10 is the answer
C(5,2) = 5! / 2! (5-2)!
C(5,2) = 5! / 2!3!
C(5,2) = 120/12
C(5,2) = 10
7x²+3y+5+9x²+11y-2
=16x²+14y+3
B. x+1 / x+9
