if i had 78 on my grade and a test is worth 45% of my grade and got all wrong what is my score
If you got all the test questions wrong and the test is worth 45% of your grade, it means your score on the test is 0%.
To calculate your overall grade, you need to multiply your original grade (78%) by the remaining weight of your grade (55% since the test is worth 45%).
So, your overall score would be 78% * 55% = 42.9%.