Answer:
I'm not completely sure so if this is wrong plz dont get mad but I think it might be 3 and 8/10
Given that,
= 39
We will find the second term 

Similarly,

Now we use the option checking method,
Suppose we check 4th option
a_{n}= 6n + 33
for n=1
= 6(1) + 33 = 39

It means option D is correct
Let
s-------> the side length of a square
we know that
The area of a square is equal to

convert to function notation

therefore
<u>the answer is </u>

It is a rectangle since all sides are even
Answer: B. Plus or minus 1 standard deviation from the mean
Step-by-step explanation:
A deviation is a box under the graph and the shaded area under the graph is plus or minus 1 standard deviation