X = 29
61 + 90 = 151
180-151 = 29
I don't know this sorry is there any other way I could help you
Length of CB = Length of AB -AC
= 34 - 12 = 22
therefore the answer will be b.22
-3+7=4 should be your answer
3-8 equals to -5 because if you stele a number line and count 8 points from three it will equal -5
