Consider the following numbers.

• Binary 1100
• Decimal 11
• Hexadecimal D

Which of the following lists the numbers in order from least to greatest?

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Hexadecimal is represented by 16 places: 0123456789ABCDEF. D is in the 13th place and therefore has a value of 13 in decimal.

Binary can be converted using base 2. 1100 represents:

$$ 1\cdot2^3 + 1\cdot2^2 + 0\cdot 2^1+0\cdot 2^0 = 8+4+0+0=12$$