Answer:
41.67% probability that a student has a dog given that they have a cat
Step-by-step explanation:
We use the conditional probability formula to solve this question. It is

In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: having a cat.
Event B: having a dog.
12 of 27 students have a cat:
This means that 
5 students who have a cat and a dog.
This means that 
What is the probability that a student has a dog given that they have a cat?

41.67% probability that a student has a dog given that they have a cat
Answer:
It is rational because 121 is a perfect square.
Answer:
In year 2013 annual maintenance done = $ 3,000,000
Out of this 85% is expected to renew in 2014 =
= $2,550,000
Now Sales in 2013 = $3,000,000
60% of these sales =
= $1,800,000
Now out of this 60%, 20% annual maintenance was expected to be paid
In 2014 =
= $360000
So, Total annual maintenance in 2014 = 
= $2,910,000
100 cm is equal to 1000m, so yes it is equal
Answer:
Three
Step-by-step explanation:
It is not divisible by five