To determine which of the options results in the value of 1, let's evaluate each one:
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3(8^0): Since \(8^0 = 1\), this becomes \(3 \times 1 = 3\).
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5^0 + 9^0 + 5: Since \(5^0 = 1\) and \(9^0 = 1\), this becomes \(1 + 1 + 5 = 7\).
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13 - (7.42)^0: Since \((7.42)^0 = 1\), this becomes \(13 - 1 = 12\).
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(-2.97)^0: Since any non-zero number raised to the power of 0 is 1, this becomes \(1\).
The option that results in the answer of 1 is (-2.97)^0.