Duncan has three test results with a mean of 25 and a range of 20. His first result was 21. What did he get on the other two tests? Prini has 5 cards. The 5 cards have a mean of 11 and a range of 8. What are the numbers on the last two cards?

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step-by-step explanation:

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

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