Answer:
1 = B
2 = A
3 = C
4 = D
Step-by-step explanation:
If the diameter is 12 inches, the radius is 6 inches, because the radius is half the diameter.
Given the formula
![A=\pi r^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2)
we have
![A=36\pi](https://tex.z-dn.net/?f=A%3D36%5Cpi)
When you fold the circle in half, the resulting figure has half the area.
So, you start with a circle with area ![36\pi](https://tex.z-dn.net/?f=36%5Cpi)
You fold it once and you have a semicircle with area ![18\pi](https://tex.z-dn.net/?f=18%5Cpi)
You fold it twice and you have a quarter circle with area ![9\pi](https://tex.z-dn.net/?f=9%5Cpi)
-2+(-7)
-2+-7
-2-7
-9
so the answer would be number line C.
Since she had $35.48 on her card.
Amount spent in buying coffee = $70 - $35.48 = $34.52
Cost of coffee = $8.63 per pound
No of pounds = Amount spent / cost per pound
= 34.52 / 8.63 Use your calculator.
= 4