27, 36, 45 are greater than 20 and multiples of 9.
Answer:
B
Step-by-step explanation:
A biased sample is a sample that does not accurately represent the population.
The survey asked only girls, but we can assume this school has both boys and girls. Therefore, by only asking girls, it creates a bias, because the boys in the school are not represented.
Therefore, the correct choice is B: biased sample.
It would be an open circle with an arrow going to the right
Answer: she is 60 years old because 48+12=60 yrs old now
