-9 degrees Celsius
because when the temp is negative it and it keeps going down, then the numbers basically get added and have a negative sign in front of it.
-3 +-2 +-4 = -9
I would either use a histogram or a frequency chart, but histogram is easier and neater
The simplification of the given expression
will be equal to 
<h3>What is simplification?</h3>
The process of reducing the complex mathematical expressions into the simplest form is called as the simplification.
The simplification of the given expression will be:

hence the simplification of the given expression
will be equal to 
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See the attached picture.
The negative sign in front of the 2 makes the graph an upside down U shape.
Answer:
If it has a diameter of 10, divide it by 2 to get Radius (5) because Area = πr²
Then you do r * π *r which would be 78.5. so C is your answer.
Step-by-step explanation: