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
80% decrease. because 1% of 300 is 3 which you multiply 3*20 and which means 20 percent equals $60 the leftover percent is the decrease
Answer:
The percentage of the variability in plant weight is NOT explained by height is
%
Step-by-step explanation:
From the question we are told that
The correlation between height and weight is 
Generally the R-Squared between height and weight is mathematically represented as

substituting values


This R-Squared tells us the percentage of plant weight is accounted by height
and from the calculation we see that it is 56.3%
Now the percentage of plant weight that is not accounted by height is

%
Can you upload the document please so I can try to assist you