Answer:
18
Step-by-step explanation:
18=2×3×3
54=2×3×3×3
gcd=2×3×3=18
(16/81)^1/2 = the square root of 16/81
Your answer would be 4/9.
The ratio between 12 and 8 is 1.5, so you need to divide every other number by 1.5.
2/1.5=1.3
9/1.5=6
18/1.5=12
If I read, and understood, your question correctly, this should be right.
3x+1 = 3x+2 has no solution
