Your brother would be nine years old.
Answer: 1/6
Step-by-step explanation:
just simplify 2/12 to 1/6
2/12 both divided by 2
PART ANSWER:
Hi. I don't know the entire answer but I do know the probability of chosing a blue marble once is 25%.
5 + 3 + 2 + 2 = 12
3/12 or 1/4 = 25% or .25
Sorry I could not fully help.
You need to do 20 divide by 21 to get a decimal. Then if you multiply the decimal by hundred you should get the percentage.
