I think the right pronounciation should be "ruzzu 3umari tayyib"
Correct. Tanween should not be pronounced in the "idafa" format.
Ruzzun 3umari tayyib (Wrong)
Ruzzu 3umari tayyib (Correct)
thanks. are u native arabic?
It should actually be "ruzzu 3umara tayyib," as Omar is a dipartite noun, seeing as to how it's a proper noun in the same binyan as that of a verb.
For a space you can not put is wrong
I put the same translation and duolingo give me error, I can not go on
Again, English problem. Omar's rice are good, is more appropriate than "is".
Actually not. Rice is an uncountable noun. Except you are counting every single rice corn, we speak about rice in singular.