Answer:
36
Step-by-step explanation:
9, 18, 27, 36, 45, 54, 63, 72
12, 24, 36, 48, 60
They have a LCM of 36
what is ac?
x = 1/2
y = 7x+5
y = 9x+4
7x+5 = 9x+4
1=2x
x = 1/2 = 0.5