1. 55
2. N/A - Sorry. I can’t see the numbers properly.
3. 180
Answer:
The score is 
Step-by-step explanation:
From the question we are told that
The population mean is 
The standard deviation is 
From the question we are told that the score follow a normal distribution
i.e 
The proportion of score in the top 10% is mathematically

Where x is the minimum score required to be in the top 10%
Now the 
So

So

So the critical value of 0.10 from the normal distribution table is 
So


Using a calculator, I arrived to answer C because if you enter it in right you arrive at 39.419, rounding it to 39.42
Is this a multiple choice question?