Respuesta :
Answer:
25%
Step-by-step explanation:
[tex]\frac{new-old}{old} *100[/tex]
[tex]\frac{21-28}{28} *100 = -25[/tex]
The percent change in her score was 25%.
Answer:
25%
Step-by-step explanation:
[tex]\frac{new-old}{old} *100[/tex]
[tex]\frac{21-28}{28} *100 = -25[/tex]
The percent change in her score was 25%.