Answer:
ITS 9!!!
Step-by-step explanation:
It’s 1, 3x + 15 = 18
3x +15 - 15 = 18 - 15
3x=3
3/3 = 1
Answer:
Step-by-step explanation:
B + 87 +78 +66 = 360
B = 129 °
the angle next to B then is
180 = 129 + b '
51 ° = b '
A + 61 + b ' = 180
A = 68 °
5 4.5 Hope I helped!
-RainyClouds~
C because 1/2 of brothers book plus 5 equals 7