I believe the answer to be only sequence A.
-Hope this helps, have a nice day! :)
Answer:

Step-by-step explanation:
-This is an LCM problem.
-To simplify, we introduce a least common multiplier which is equivalent the product of the denominators:

#We introduce the LCM and adjust the fractions based on it :

Hence, the simplified form of the fraction is: 
Answer:b is the right choice hopefully dont be mad if it is wrong
Step-by-step explanation:
Answer: The answer is 870
If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.
Answer:
From the origin, move 0.5 unit to the left along the x-axis and 1 unit vertically down, and place the point.
Step-by-step explanation:
hope this helps! :}