A dance studio charges $17 for the first ballet class a dancer takes and $11 for each class after that. what are the first four
terms of an arithmetic sequence in which an is the total amount a dancer pays, in dollars, for taking n ballet classes?
1 answer:
$17
17+11 = $28
28+11 = $39
39+11 = $50
17 + 11(n-1) $$
n-1 because removes the first class of $17
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