Math questions
1. 2 numbers with GCF of 18 and LCM of 180
2. Find as many numbers as you can as a square and a cube
3. Find x and y: 81^x= 1/729^y
4. If the speed of light is 1.5*10^11 m/sec and the sun is 13*10^8 km away from the earth. How long does it take for light to reach earth( use scientific notation )
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Answer:
define diffusion
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