Answer:
About 473 quails.

Step-by-step explanation:
Exponential equation with
as the initial amount and rate of r is:



After 5 years the population will be:


So the population will be about 473 quails.
Answer:
Step-by-step explanation:
Since the picture isn't given. I have no idea what the radius or diameter is and as such, have no definite answer for you.
However, from the question, if he's to run round the circular track once, then he must have run a total of
2πr meters, with r being the radius.
Now, the question says that he ran round the track 10 times, this means that whatever value we get there, for 1 trial, we multiply it by 10, to get the value for 10 trials. Essentially,
10 * 2πr
The value gotten is the needed answer. All you have to do is substitute r for the value you have in your diagram. We already know that π is 3.142
Yes, usually they will suggest you to stick with fractions more than decimals.
Answer:
D. 
Step-by-step explanation:
Graph
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