Answer:
40
Step-by-step explanation:
Least common multiple (LCM) of 8 and 10 is 40.
8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80
10: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100
Common Mutiples: 40 and 80
LCM: 40
X=12°
y=60°
75=6x+3
x=12°
y=180-(45+75)