If I failed two nine weeks out of four nine weeks, can I still pass the grade? I want only high schoolers or people who know to answer me.

if you failed 2/4 times there is still a chance you can pass only if you really try :)

-Try doing extra credit

-Do your best on every assignment

-if your school has office hours use them

-DO really well on your final  (finals are usually around 20% of your overall grade)

-Just study a lot

Hope I helped :)