The answer would be 28.26.
The reason this would be the answer is because radius is half of a circle and diameter goes through the entire circle the formula for this problem would be
Circumference= 

and the tent has radius of 3m which means we have to multiple 3 × 3 to get 9m and then we would multiply 9 × 3.14 = 28.26
Here’s the answer and how i worked it out step by step. hope this helps :)
Answer:
A roll of quarters from the bank is worth $10 and weighs almost exactly half a pound, so 200 pounds works out to $4000.
Answer:
"a period change"
Step-by-step explanation:
Simple ways of understanding transformations are:
<u>Phase shift: </u> 2 graphs would be shifted version of each other, all other things constant.
<u>Period change:</u> the 2 graphs would have different cycles, one would be compressed/stretched version of the other, all other things constant
<u>Amplitude Change:</u> The height/crest of the graphs would vary, that is the amplitude. All other things constant.
<u>Addition of Negative constant:</u> this would shift the 1 graph downwards with respect to the other graph, it is a vertical shift. All other things constant.
Now carefully looking at the 2 graphs given, we can see that the cycles are different. One is a more "relaxed", or "stretched" version of the other. This means, the period is changed.
2nd answer choice is right.