Melody

I was hoping you would discuss it a little more than that Alan.

Is there anything more that you can say - I mean, why is mass irrelevant?

Is there something wrong with the calc on the home page??

I don't think so   

Yes, since there are no brackets in the question anon answer is the correct one.

(I was just reading you mind - we get fo used to people not putting in necessary brackets)

Please learn from this post :))

How to upload an Image.

just add them and then divide by 2

e = 83 degrees  Alternate angles on parallel lines.

use angles at a point to find f

f=g  Alt angles parallel lines

Use angle sum of a pentagon to find the last angle.

NOW

Use this to upload pictures.  See if you can work it out and if you can't then ask for help. :)

How to upload an Image.

There is no picture - that is sad  

Maybe this will help

 How to upload an Image.

Saseflower,

to write r squared you can use this ^ symbol.  That means to the power of

$$r^2=$$    r^2

Your question does not make any sense 

Heureka can you please explain how you got your answer -

I would like to know how to do diaphantine equations too