Answer: I think standard form is when you you write it in thousands
Step-by-step explanation:
The most right answer would be the one you think because I think that’s right 4x4
The population decreases by 4118 so the previous population was 18,318
7x (2x^2 - 3) is your answer my dude/lady
ANSWER

EXPLANATION
Let R be the radius of the bigger circle and r, be the radius of the smaller circle.
Then their ratio is given as,

We can rewrite it as fractions to get,

We make R the subject to get,

The area of the bigger circle can be found using the formula,

This implies that,


But it was given in the question that, the area of the bigger circle is 27π.

We divide through by 9π to get,

This means that,

The area of the smaller circle is therefore
