Physics, 11.12.2019 08:31 ChooseHappy
Select all the expressions below which represent a 20% discount off the price of an item that originally costs d dollars.
a. 0.8d
b. d-0.2
c. d-0.2d
d. 1-0.2d
Answers: 3
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Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.
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Select all the expressions below which represent a 20% discount off the price of an item that origin...
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