Answer:
Matt is not correct
Step-by-step explanation:
The remainder from division by 9 will always be a number less than 9. The number 17 is not less than 9, so Matt made an error.
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Matt may have tried to find the remainder by adding the digits of the dividend:
2 + 9 + 6 + 0 = 17
Matt needs to continue this process until he gets a single digit:
1 + 7 = 8
8 is the remainder from the division.