I myself am having a difficult time figuring out how many separate equations that are to be compared
Answer:
Changes can occur to physical properties of a substance,but the chemical composition of the substance remains the same.
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Answer: all angle measures are equal
A rational number is any number that can be written <em>as a ratio of two integers</em>.
0.62 fits the bill, as it can be written as the ratio 62/100 (or simplified to the ratio 31/50)
