If my overall math grade in math is a 68, if i score a test worth 25% of my grade, and score a 100 on it what will be my new overall math grade, 20 questions by the way

To calculate your new overall math grade, you can use the following formula:

New Overall Grade = (Current Grade * 0.75) + (Test Grade * 0.25)

Given:
- Current Grade = 68
- Test Grade = 100
- Test Weight = 25%

New Overall Grade = (68 * 0.75) + (100 * 0.25)
New Overall Grade = (51) + (25)
New Overall Grade = 76

Therefore, your new overall math grade will be 76.