Answer:
14mn
Step-by-step explanation:
Answer:1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31
2.7
Let the number alex think be x
Answer = 22.7
According to the question,
x + 20 = 22.7
x = 22.7 - 20
x = 2.7
Therefore, his original number is 2.7
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Energy = Planck's constant * frequency
= 6.626 * 10^-34 * 5.66 * 10^8
= 3.7503 * 10^-25 Joules
14
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