15 points ! complete the table and pattern. determine the common difference. write the explicit rule.

9.

n   |    1     |   2    |   3   |   4   |   5    |   6   |

f(n)| -252 |-243 | -234|-225| -216 | -207 |

First term: -252      Common Difference: 9

Explicit Rule:         Recursive Rule:

10.

n   |    1     |   2    |   3   |   4   |   5    |   6   |

f(n)|   72   |  63   |  54  |  45  |  36  |  27  |

First term: 72      Common Difference: -9

Explicit Rule:         Recursive Rule:

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or