Answer:
1/4
Step-by-step explanation:
-1/2 (2/2) -> -2/4
-2/4 + 3/4 = 1/4
12.63
To simplify to a improper fraction, you do 243 times 5, which is 1215, then add 1, which is 1216
100+75+70+x= 360° (sum of interior angles of quadrilateral)
x= 360-245= 115°
I think the answer is -25
