Answers by Kevin Pei
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Answers by Kevin Pei

Answers by Kevin Pei
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Dolphins communicate using compression waves (longitudinal waves).  Some of the sounds dolphins make are outside the range of human hearing. Upon spotting a hungry shark, dolphin A sends a message to dolphin
answered Mar 10, 2018
2 votes
153k views
An amusement park sells adult tickets and children's tickets, with adults costing $5 and children's costing $3. If Ed bought 15 tickets and spent a total of $57, how many children's tickets did he buy?
answered Feb 22, 2018
6 votes
189k views
What is a physical property of copper
answered Dec 9, 2017
5 votes
4.1k views
What is the most spectacular sight you have ever seen ?
answered Nov 25, 2017
3 votes
116k views
If an animal has long canine teeth and sharp molars it is probably a a. carnivore. b. rodent. c. deer. d. herbivore.
answered Apr 23, 2017
2 votes
4.8k views
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