Ok so what we have to do is 4+7+9=c
4+7=11
11+9=20
c=20
your answer is 20
Answer:

Step-by-step explanation:
The two-way frequency table is attached below.
We have to calculate the probability of, a person chosen at random prefers pizza given that they are female, i.e 
This is a conditional probability.
We know that,

So,

From the table,


Putting the values,

Answer:
B. 0
Step-by-step explanation:
The circles do not intersect, tangents require intersection
If you calculate 20^10/4^42 then you will find out it equals25
6 + 12 = 18
18 + 24 = 42
Double the difference between every 2 numbers (12 x 2 = 24 x 2 = 8)
42 + 48 = 90
90 is the missing number
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