Answer:
1) 13 Students were surveyed
2) 3 students
3) 7 Students
4) 10 Books
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The probability that a randomly selected carton has a puncture or a smashed corner is 12.6%.
In this problem, the events are:
Event A: Puncture.
Event B: Smashed corner.
The "or" probability is given by:
∩
5% have a puncture, hence 
8% have a smashed corner, hence 
0.4% have both a puncture and a smashed corner, hence
Then:

Therefore, The probability that a randomly selected carton has a puncture or a smashed corner is 12.6%.
Learn more about probability here brainly.com/question/20344684
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<span>If Cheryl has $56 she can buy 35 notebooks at $1.60 each. You can set this up in equation form as 56 = 1.60 x N where N represents the number of notebooks.</span>
Subtract x from the left side to get
16=8x
Now divide by 8 on both sides to get x by it self
16÷8
8x÷8
x=2
Comment if you have any questions. :)