I assume that you mean 18s-27t
Let's go through each answer, and see which one is right.
A) 9 × 2(s-t)
Simplify that.
18(s-t)
18s-18t
So, A) is incorrect.
B) 9(2s-3t)
Simplify.
18s-27t
B) is the correct answer
C) 6(3s-4t)
Simplify.
18s-24t is incorrect because it is not equal to 18s-27
So, C) is incorrect.
D) 6 × 3(s-t)
Simplify.
18(s-t)
18s-18t
D) is incorrect.
So, your answer is B) 9(2s-3t)
~Hope I helped!~
