It is your second semester sophomore year in high school and you have a 2.9 if get 4.0 for the next how much will grade go up?

Let's assume you have completed 6 semesters of high school (two years). A 2.9 GPA over 6 semesters means your total grade points are 2.9 * 6 = 17.4.

If you get a 4.0 for the next two semesters (your junior year), you'll add 4.0 * 2 = 8 grade points to your total.

Your new total grade points would be 17.4 + 8 = 25.4.

Your new GPA would be 25.4 / 8 = 3.175.

Therefore, your GPA would go up by approximately 0.275 points, from 2.9 to 3.175.