# Arianna Zamorano-Module 5

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2016-04-18 00:58

## Section

Question | Answer |
---|---|

What is the principal? | the intial amount of money borrowed or saved |

What is the percent increase? | a percent change describing an increase in a quantity |

What is percent decrease? | a percent change describing a decrease in a quantity |

What is simple interest? | a fixed percent |

Percent Increase and Decrease formula | percent change=amount of change/original amount |

Percent increase and Decrease steps | 1)find the amount of change,2)find the percent increase |

Markups steps | 1)use a bar model,2)retail price=original cost+markup,3)use the expression to find the retail price |

tax price steps | 1)use a a bar model ,2)add price and sales tax |

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