Answer:
Area of circle = πr^2
Area of circle when diameter is 2x; r=x
=πx^2
Answer:

Step-by-step explanation:






Answer:
5/7 is the only one
Step-by-step explanation:
Whole numbers are a subset of integers, which in turn are a subset of rational numbers.
So, every whole number is an integer, and every integer is a rational number.
So, it is possible for a rational number not to be an integer. Think of any decimal number: 1.356 is a rational number, but it's not an integer.
On the other hand, if a number is not an integer, it can't be a whole number, because all whole numbers are integers.
I dont think that it belongs in primary consumers, secondary or third level consumers