Respuesta :
[tex]\text{We're trying to find the score of the 1st quiz}\\\\\\text{We know that their second score was 39}\\\\\text{We also know that they dropped 8 points in the 2nd quiz}\\\\\text{To find the score of the 1st quiz, add 8 and 39}\\\\39+8=47\\\\\boxed{\text{1st test score was a 47}}[/tex]