100% - 65% - 20% = 15% girls.
15% = 0.15
820 * 0.15 = 123 girls
Answer:
Combination without repetition
Step-by-step explanation:
The fruit he chooses doesn’t matter because he’s simply throwing them in his lunch box (so it’s a combination). And because there is a limited amount of fruit it is without repetition.
This is a bit of a guess, but I think probably a) +4 and also a) -215
The answer would be 9. Hope that helped!