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caden owns a popular retail website. the initial number of transactions that took place in the first hour of monday was 10, and the number of transactions doubled every hour after the first hour.

which statement best describes the initial number of transactions in this situation?

a.
the initial number of transactions is an independent variable.

b.
the initial number of transactions is a dependent variable.

c.
the initial number of transactions is neither an independent nor a dependent variable.

d.
the initial number of transactions is both an independent and a dependent variable.