Answer:
Option D
Step-by-step explanation:
Generally the equation for Margin of Error is mathematically given by
Condition for Largest M.E
n has to be smallest and Z value has to be largest.
Where
From options
Smallest 
Largest Z value respects to 
Therefore
n= 300, confidence level 95%
Option D
Answer:
And step-by-step explanation
Answer:
Please see attachment
Step-by-step explanation:
Please see attachment
Answer:
second one (b)
Step-by-step explanation:
The nickel (at the bottom) is increasing at a steady pace. We know this because the line is going in a linear motion (meaning in a straight line). And it is increasing by a steady number (the gradient is 5 grams).
The answer would be B check the picture for work.
