D. , this is a good way because this way you can easily multiply and then you'll see your answer right in front of you.
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Answer:
The comparision of an unknown physical quantity with a known standard quantity is measurement
You could give all of the fractions a common denominator. You could also solve each of them (1/2=0.5) to see their value and order them through the value.
Answer is A. first one...
P = -3
G = 3
P = -G = -(3) = -3
