Answer:
None because all of them requires 3x=27
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
5/18 times 9/35 equals 45/630
reduces to 1/14
The top row contains the product of

with each term of the expressions

and bottom row contains the product of -1 with each term of expression

.
The final result will be the sum of terms of both rows as shown below:
So the correct answer is option D