Answer:
Independent: The people who attend.
Dependent: The copies she has to make.
Step-by-step explanation:
She will make a certain amount of copies depending of how many people attend.
Answer: The bottom one is the answer
Step-by-step explanation:
The one on the right wouldn't be correct because histograms are supposed to always be connected from the beginning of it.
The one on the left is ignoring the fact that 40-59 and 60-79 are two different periods of minutes.
So the only correct on would be the bottom one.
Answer:
The blank is 3
Step-by-step explanation:
1 - Give the blank a variable
x = our blank
2 - Write it out

3 - Get the denominators equal

4 - Simplify

5 - Solve for the numerators
30+7x = 51
-30 -30
7x = 21
x = 3
The correct answer is the fourth one