Answer:
62.832
Step-by-step explanation:
So, questions 1 through 3 are pretty vague and you can basically put whatever you think. But... as a hint you might want to base your answers to 1 through 3 on question 4, which is more specific and gives you some clues.
For example, question 2 asks "When do people usually need Kleenexes?" Question 4 basically answers this for you by saying "...blah blah blah are used throughout the duration of a cold." So you could easily say that people usually need Kleenexes when they are sick. You could use this same type of reasoning to answer questions 1 and 3.
To answer 4 itself you need to know how to use confidence intervals. Are you familiar with that?
Question 5 will be based off of your answer to question 4.
5.2 represented with significant figures. 5.2083 (3 repeating) is the actual answer.
First you find the area of the rectangle portion, by multiplying 40 by 100 = 4000cm(2)
Next find the area of the triangle by multiplying 30 by 40 then dividing in half.
30*40)/2=600
Now add the two
4600cm(2)
