Question

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?

Answer 1

$17

17+11 = $28

28+11 = $39

39+11 = $50

17 + 11(n-1) $$

n-1 because removes the first class of $17