<span> Add x to both lenght and width and you get 25+x and 10+x. Set up equation with new area </span>
<span>(25+X)(10+X)=1000 </span>
<span>solve using quadratic formula
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Review your notes and have a friend test you on them. Go over anything you had trouble on by reading it 10 times, writing it 10 times, and saying it out loud 2 times. It should help you remember and good luck! :)
Number of ways = 4! = 4 x 3 x 2 x 1 = 24
Answer: 24
I am pretty sure the answer is C because that would be the least biased with the most information.
A would be biased because it is only elementary.
D is biased because it is only teachers that worked for a long time
B is fine, but C is better because it has more people.
The mean is 62 (496/8=62)
The median is 63 (52,52,52,62,64,69,69,76 take the two middle numbers and find the average 62+64/2=63)
The mode is 52 (there are three 52's)