Correction of sentence written in school declaration

Correction of sentence written in school declaration
Hello guys! I need your help...

I am not fluent in English and I would like to know if I wrote the two sentences below correctly and how do I put the date, city and country at the end of a declaration that must be signed by the principal.

1) Official certificate proving that the student Maria Eduarda Carvalho met the standards established by TEKAI in relation to her academic achievements.

2) High school grades converted from a 100-point grading scale to a 4.0 point grading scale (G.P.A).

Thanks!!

Hello, Reika!

I'm not a native speaker either, but I have a tip that may be helpful.
This page grammarcheck.net/editor/ has been very helpful when it comes to checking grammar.

@Reikalexis
For the second point, it is an equation and you have to know the number of hours to be able to get the GPA