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Final answer:A decimal-inch rule graduation refers to the measurement markings on a ruler that represent decimal inches, divided into tenths, fiftieths, and hundredths of an inch.Explanation:A decimal-inch rule graduation refers to the measurement markings on a ruler that represent decimal inches. These markings are typically divided into tenths (0.1), fiftieths (0.02), and hundredths (0.01) of an inch. Therefore, the correct answer isAll of the above. For example, if you see a measurement of 0.32 on the ruler, it means 32 hundredths of an inch.Learn more about Measurement markings on a ruler here:brainly.com/question/9249272...