Respuesta :

Answer: 1.5 common difference

Step-by-step explanation:

7 = 10.2, 12 = 17.7

d = 17.7 - 10.2/ 12 - 7

d = 7.5/ 5

d = 1.5

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Answer:

Answers for all of these questions on edge are 1.5, 1.2, and A on the last one. Have a good day/afternoon/evening!

Step-by-step explanation:

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