The answer is C
4(3-x)+6x=3x+12-x All real numbers are solutions.
You only need to consider the situations where 10 or 11 of the babies are girls, then subtract those probabilities from 1. This will give probability that any other number up to 9 of the babies are girls.
Use binomial theorem.

n = 11
k = 10,11
p = 1/2
Answer:
8
(
7
−
1
)
Step-by-step explanation:
Find the common factor.
Answer:
1/2
Step-by-step explanation:
B
Equivalent fractions are made when you multiply both the top (numerator) and the bottom (denominator) of the fraction by the same number. The only choice that is correct here is B.