If a test weighs 4% of my grade and my current overall math grade is a 76, and I get a 100 on the test that weighs 4% in my grade what would be my overall math grade in school

To calculate your overall math grade after receiving a 100 on a test that weighs 4% of your grade, you can use the following equation:

Overall grade = (Current grade * 96%) + (Test grade * 4%)

Given:
Current grade = 76
Test grade = 100

Plugging in the values:
Overall grade = (76 * 0.96) + (100 * 0.04)
Overall grade = (72.96) + (4)
Overall grade = 76.96

Therefore, your overall math grade after receiving a 100 on a test that weighs 4% of your grade would be 76.96.