The perfect answer is 7.5
16/20 of the girls have brown hair
15/20 of the girls have long hair
6 servings = 3 people
1 cake=12 servings which feed 6 people
6/x=3/21
3x=126
x=42 servings
42 servings/12(amount of servings in a cake)=3.5. She will need to bake 4 cakes.
I need help whit this too!
Answer:
1065 hours
Step-by-step explanation:
well all you gotta do is multiply 5x 213