Answer:
1/2+1.5
I think. I'm sorry if I'm wrong
Step-by-step explanation:
I'm not sure, but I knew that 12×12=144 so I guessed that it was 12×13 and checked what that was and it was 156, so I guess and check probably
6a+18 should be your answer
Angles in a line = 180
180-165 = 15 degrees
15 + 45 + ? = 180
60 + ? = 180
? = 120
