Answer:
145°
Step-by-step explanation:
upper left angle inside triangle is 180-137, or 43°
lower right angle inside triangle is 180-(43 + 102) or 35°
'?' measures 180 - 35 which is 145°
the answer for question 1 is -7
13x-4
MO=7x-4
NO=6x
MO+NO=?
7x-4+6x=13x-4
I think x=-25
