The mean of this dataset is: 6
Answer:

Step-by-step explanation:
What we're basically looking for here are ways to get 100 using these numbers.
My immediate first thought was "can we divide the 7's by some 7's to get 100?"
I know that
, so I had the idea to make it
. This means that we can use the number 7 four times in the equation
.
However, we're still missing a 1 that we need to include. This is easy, we can just multiply
by 1.
So in conclusion, we get 
Hope this helped!
Answer:
1:2
Step-by-step explanation:
The ratio is 2:4, or 1:2
Hope I helped!
Answer:
30 degrees
Step-by-step explanation:
The angles must add up to 180 degrees and the triangles have the same angles.
D is the function that is graphed