Answer: 3^15
Step-by-step explanation:
Explained in attached picture. Hope you'll find it easy to understand. If not, you can comment :)

=18 sqrt2+15 sqrt2=33 sqrt 2
It will be 21/40
probability getting both white marbles
3/8×4/10=12/80
probability getting both black marbles
5/8×6/10=30/80
12/80+30/80=42/80= 21/80
Answer:
1020 POUNDS.
Step-by-step explanation:
i think im not sure if i am wrong tell me and i wiil redo! :)