I think that the most accurate one is trial 3 since it is the least incorrect and closest percent-wise to the actual correct density of the metal.
Hope this helps!
It is D because you would do x+6 and would get y so it represents direct proportion
Answer:

Step-by-step explanation:
LCD: 10

answer: 
THE PARABOLA OPENS DOWN (WHICH IS MAXIMUM ) AND X=1/2
Answer:
The Correct Answer is
(11/2)
Decimals Form: 5.5