The differences is 7 because I counted.
Because in an equilateral triangle all angles should measure 60 degrees otherwise all sides would not be equal.
The answer for the blank space is 21.8
D
The reason is because well first of the plotted dot is filled in with means that x needs to be less then or equal too so to represent that you put the line under the less then symbol and none of the other options have that exact symbol
The arrow is going to the left this is stating that x needs to be less than -2
If it’s wrong then I apologize because I don’t really remember this
