Each person would receive 1.5625 pounds of berries.
Answer:

Step-by-step explanation:
You would substitute "2x" for every "x" in the function in the same way you would substitute any other number.
So if f(x)=Sqrt[7x²-3x], then: f(2x)=Sqrt[7(2x)²-3(2x)]
=Sqrt[7(4x²)-3(2x)]
=Sqrt[28x²-6x]
This equation is physically unsolvable, as 12 isn't equal to 9.
Answer:
Step-by-step explanation:

Hence,
The radius of the circle is 4 units, coordinates of its centre are (4,-2).


