Answer: 7.5
Step-by-step explanation:
In scientific notation, it would be 2x10^3.
An easy trick to help remember when it is a multiple of 10 is that you do the numbers that aren't zero (2) times 10 and the exponent is how ever many zeros there are after the other numbers (3).
Answer: I can give you the volume: 480. But to find the area I need more context to know which are the length and width.
You are being asked to make π the subject in

So divide both sides of the equation by

That is

The you have

or

I hope this is helpful?