Respuesta :

autumnmcclellan

Answer: Step-by-step explanation: get a turtor then

jacksonsonika94

Answer:

Hope my answer helps you Mark me brianliest hehe have a nice day （⌒▽⌒）（⌒▽⌒）

Step-by-step explanation:

if nth term is n( n+1)/2

then,

17(17+1)/2

289+17/2

306/2

153 answer

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