Shawna is a dancer who will be participating in an upcoming dance competition. For each dance number Shawna plans to participate in, she will require a different costume. Identify the dependent and independent variables.

i = Shawna is a dancer
d = The number of costumes
i = The number of dances Shawna plans to participate in
d = The number of costumes
i = The number of dances Shawna plans to participate in
d = The upcoming dance competition
i = The number of costumes
d = The number of dances Shawna plans to participate in

Independent variable: The number of dances Shawna plans to participate in (i)

Dependent variable: The number of costumes Shawna will require (d)