1). 9/20. 2). -4/7. 3). 15/36. 4). 25/30. 5). 3/5x
Answer:
your answer would be D....
First pic ; they are complementary angles , so C !!
second pic ; both angles are supplementary angles !! as sum is 180° !!
(-6x-6)+(8x-6)
-6x-6+8x-6
2x-12
Hope this helps :)
