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Is 66 a factor of 20r+3020r + 30?\newlineChoices:\newline(A)yes\newline(B)no

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Full solution

Q. Is 66 a factor of 20r+3020r + 30?\newlineChoices:\newline(A)yes\newline(B)no
  1. Factor out common factor: Simplify the expression by factoring out the greatest common factor, which is 1010.20r+30=10(2r+3)20r + 30 = 10(2r + 3)
  2. Check for factor of 66: Check if 66 is a factor of the simplified expression 10(2r+3)10(2r + 3).\newlineSince 1010 is not divisible by 66, and 2r+32r + 3 does not contain a factor of 66 unless rr is specifically chosen to make it so, 66 is not a general factor of 10(2r+3)10(2r + 3).

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