G = (7h + 2f + 3c - 17.15)/2
Answer:
36
Step-by-step explanation:
90÷5=18
18×2=36
We multiply two because the ration for adults is 2
QUESTION A
The total number of bottles Ella collected is

The number of bottles that are plastic is

The percentage of bottles that are plastic is




Therefore 38% of the bottles are plastic.
QUESTION B
The total number of bottles that are glass is

The total number of bottles Ella collected is

The percentage of bottles that is glass is




Therefore 62% of the bottles are glass
If brian is 8 and his brother is twice his age, his brother is 16. His brother is 8 years older so when Brian is 11 he will be 19