Hey!
Grape over total: 
After he drinks 1, there will be 1 less. That means it will be over 11
Orange over total: 
Now multiply the fractions

That means the probability is: 
Good luck and hope this helps! :)
Answer:
510
Step-by-step explanation:
(0.68)750
shift decimal places
510.00
refine:510
To be honest I do t understand this but Carlos does so contact him
D because ugh I don’t feel like explaining