Use the table on the right to convert from binary to decimal.

In binary, 1111 represents 8 + 4 + 2 + 1 = 15, so “The binary value of decimal 15 is 1111” is correct. A and D give hexadecimal symbols (A and E), not binary values. B is incorrect because 1001 in binary equals 8 + 1 = 9, not 13.

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