Answers by Alvin Leung
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Answers by Alvin Leung

Answers by Alvin Leung
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Explain why amphibians are good early warning devices for water pollution.
answered Apr 7, 2019
6 votes
41.3k views
Kona’s mother realized that her age is the difference of Kona’s age squared and four. If k represents Kona’s age, which expression represents Kona’s mother’s age?
answered Apr 3, 2019
5 votes
12.5k views
Which statement best describes historical criticism? It considers the differences between economic classes in a literary work. It defines the roles and rules of the social classes in a society. It considers
answered Mar 22, 2019
2 votes
52.1k views
what can be concluded about the initial mass of a blue sequence star compared to a red main sequence star
answered Dec 18, 2018
3 votes
24.4k views
What is the decimal value of the fraction 2/7
answered Apr 10, 2018
2 votes
79.1k views
Fill in the blank with the correct conjugation of the verb in parentheses and the correct reflexive pronoun. Tú _____ (arreglarse) muy bien.
answered Apr 9, 2018
5 votes
174k views
A force of 99 N causes a box to accelerate at a rate of 11 m/s2. What is the mass of the box? (Ignore frictional effects.) 1,100 kg 1,100 N 9.0 kg 9.0 N
answered Jan 7, 2018
6 votes
37.4k views
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