The exact number is 8,784 toffees but if you want me to estimate to the nearest tens then it would be 8,780
Answer:
2,655 students
Step-by-step explanation:
The z-score for a 99% confidence interval is z = 2.576
The standard error for a proportion p is:

For a proportion of p =0.20, in order to ensure a standard error of 0.02, the sample size 'n' must be:

Rounding up to the next whole student, the sample size needed is 2,655 students.
Step-by-step explanation:
The slope of the line passing through two points is given by,

13)



option D
14)





option C
15)





option B
16)



option C
I think not sure but i think the discout is $5.76