Answer:
i hope find help but i dont know
Step-by-step explanation:
m∠ACD = 40°
(4x + 2) + (6x - 12) = 8x,
10x - 10 = 8x,
2x = 10,
x = 5
8(5) = 40°
x= 45
x= -15*-3
I dont know
sorrryy
Yes. Intergers are all whole numbers so negative whole numbers are included too.