The answer for that question is about 3 I think is this mathswatch
Area of a circle is πr^2.
The radius of the smaller circle with diameter 10 cm is 5 cm.
The radius of the larger circle with diameter 20 cm.is 10 cm.
Area of larger circle : Area of smaller circle
Area of larger circle = 100π.
Area of smaller circle = 25π.
Ratio = 100π : 25π or 100π/25π.
160 is 100% of 160, 480 is 4 times that. So 400%
It doesn’t have an inverse because it doesn’t pass the horizontal line test
Answer:

Step-by-step explanation: