Two meteoroids are heading for earth. Their speeds as they cross the moon's orbit are 2. 0 km/s.

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's. 

No, you can become homeschooled, though.  you can't drop out unless you are in high school.i give you the best to you and your baby!   let me know if there is any way i can you!