Ok, I'm only in 8th grade but I believe you do addition first in the problem. Hope this helps! <3
Answer:
Step-by-step explanation:
red balls=3
blue balls=4
total balls=3+4=7
probability of selecting 3 red balls=3/7 ×2/6×1/5=1/35
selecting 1 red ball=3/7
after selecting there are two red balls and total balls are 6
so now P=2/6
and so on .
The number is 'n'.
Five times the number is 5n .
Nine more than that is 5n + 9 .
It is b lol
That is the answer
