The modes are 8 and 9 in the data.
Answer:
Step-by-step explanation:
I attached a graph.
Hope that helps!
Answer: The cost will be the same on month 5.
Step-by-step explanation:
x = number of months
50 + 100(x) = $550
200 + 70(x) = $550
x = 5
First divide both sides by - 5,

Move the constant to the right side of the equation and change its sign (-4 => +4)

Add the numbers,

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I hope that helps you out!!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey
Answer:
The total change in the altitude is 58.3
Step-by-step explanation:
-42.9 + -15.4 = 58.3