An item is priced at $13.20. If the sales tax is 5%, what does the item cost including sales tax? OA. $0.66
OB. $13.86
OC. $19.80
OD. $27.06
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Common factor is such a term which can be taken out common from each term of the expression.

If you observe the given expression, 2x can be taken out common leaving the expression which cannot be factored any further.

14x² - 12x
= 2x (7x - 6)

So 2x is the common factor. The answer to this question is option C