Applying the Concepts

  1. 67. 1170

  2. 69. $12,375

  3. 71. $16.75

  4. 73. 1100

  5. 75. 408

  6. 77. 8

  7. 79. Common difference: 2; 39 dots

  8. 81. Common difference: 3; 70 dots

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