Answer:
Percent 250 of 275 is 90.9%
Step-by-step explanation:
We have to find 250 is what percent of 275.
Let X be the percentage, then
=> X = 
Now simplyfying the above relation we get
=> X = 
=> => X = 90.9 %
Hence 250 is 90.9% of 275
Havent done this in years but i think it would just be 12
Answer:

Step-by-step explanation:
Given



Required
Determine 
From laws of probabilities:

In this case:



Answer:b
Step-by-step explanation:
b