Answer: Seven ate Nine
Step-by-step explanation:
The laundry one is C
The ladder one is B.
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The best and most correct answer among the choices provided by the question is <span>(D) f(n) = 0.9 * f(n - 1) + 10, f(0) = 175, n > 0 .</span> <span>
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Hope my answer would be a great help for you.</span>
Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: 
Step-by-step explanation:
We need to find the probability that you will get exactly 4 tails, if you flip a fair coin 7 times.
This is the combination question.
The total combinations will be: 2^7=128
Now, finding number of ways we can get exactly 4 tiles:
We will use the formula:

in our given question, n= 7, k= 4
Putting values:

So, Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: 
Keywords: Probability
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