Concentration of Ca 2+ and Mg 2+ from EDTA titration?

[MitsuShai]

Homework Statement

This is the lab I did: http://chemistry.depaul.edu/wwolbach/205_207/11.pdf
only steps 1,2, & 3 was performed

Homework Equations

MV1=MV2

The Attempt at a Solution

I need help finding the concentration of Ca 2+ and Mg 2+.
I already know the basics of it, but I really don't know how to do this.
My professor explained it badly and they don't really teach you how to do the calculations. Its hard to figure this thing out.

 

[symbolipoint]

You seem to show some information about your titrant. What information are you using for your SAMPLE? How much volume of analyte solution did you titrate?

 

[MitsuShai]

nevermind I thing I got it