Answer:
Each cast 7
Step-by-step explanation:
28 + 35 = 63, I just guess and checked
ok so how you do this one is your going to divide the 63 spells by the ratios added and then multiply by 4 and 5
[tex]63 \div 9 = 7[/tex]
[tex]7 \times 4 = 28[/tex]
[tex]7 \times 5 = 35[/tex]
luna casts 28 spells
ginny casts 35 spell