Answer:=−x3+26x2+−7x+−13+6x4+−x3+8x+27
=(6x4)+(−x3+−x3)+(26x2)+(−7x+8x)+(−13+27)
=6x4+−2x3+26x2+x+14
Answer: =6x4−2x3+26x2+x+14
5.2x7.7 = 40.71 cm squared
X= 60
The triangle it is in is equilateral (as shown by the lines through the lines) and equilateral triangles have angles of 60.
Hope this helps :)
It would be b; 80 because 0.2 times -80 is -16
