HELP! Decide whether each table could represent a proportional relationship. if the relationship could be proportional, what would be the constant of proportionality?


a. Annie’s Attic is giving away $5 off coupons

|original price| sale price|

—————————————

|$15. | $10. |

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|$25. |$20. |

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|$35. |$30. |

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b. Bettie’s Boutique is having a 20% off sale.

|original price| sale price|

—————————————

|$15. | $12. |

—————————————

|$25. |$20. |

—————————————

|$35. |$28. |

————————————-

Original price is left of tables and sale price is right of tables