# Percentage

**Problem**

Determine the percentage uncertainty in the area of a square that is 6.08 ± 0.01 m on a side.

A. 0.27% | C. 0.26% |

B. 0.25% | D. 0.29% |

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**Problem**

A salesperson earns \$600 per month plus a commission of 20% of sales. Find the minimum amount of sales needed to receive a total income of at least \$1500 per month.

A. \$1500 | C. \$4500 |

B. \$3500 | D. \$2500 |

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**Problem**

A salesperson earns P60,000 per month plus a commission of 20% of sales. Find the minimum amount of sales needed to receive a total income of at least P150,000 per month.

A. P150,000 | C. P450,000 |

B. P350,000 | D. P250,000 |

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