If 1 kg = 2.2lbs and Ms. Swalley weighs 150lbs how many kilograms is that?

i think they are all correct

explanation:

they seem good

show the wavelengths of a wave. show the crests of a wave.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

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hope this !