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A regular expression is used

7. In sed, back-reference is the re-use of a part of a regular expression selected by grouping. Back-references can only be used
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write an expression for the sum of the angle measures in a regular polygan with n sides. then wirte an expression for the
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The expression (a-4) represents the measure of an interior angle of a regular 20-gon. WHat is the value of a in the expression
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The expression (n+3) represents the measure of an exterior angle of a regular 18 gon. What is the value of n in the expression
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During an electronic store's Sale Day, the regular price for CD Players is discounted $10. There is a states sale tax of 5%, and
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2. asked by Dummy
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During a clothing store's Bargain Days, the regular price for T-shirt is discounted by $5. There is a state sales tax of 5%, and
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2. asked by AllyMag
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During an electronic store's Sale Days, the regular price for CD Players is discounted $10. There is a state sales tax of 5%,
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2. 122 views
0. During a clothing store’s Bargain Days, the regular price for T-shirts is discounted by $4. There is a state sales tax of
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2. asked by Ruka
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16. During an electronic store’s Sale Days, the regular price for CD Players is discounted $10. There is a state sales tax of
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The table shows the exterior angle measures for regular polygons. Which expression represents the exterior angle measure for any
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2. asked by Anonymous
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