2. A bag contains 20 balls.
The ratio of red to blue balls is 3:7
A ball is picked at random and replaced
The bag is shaken and then a second ball is picked at random
2 (a) Work out the probability that two red balls are picked
[3 marks)
Answer

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!

ιт ιѕ 12 αв

нσρє ι ¢συℓ∂ нєℓρ уα

beth buys 10 x shirts and still has more than 100 in her account