Question 12 - Mathematics: Level A Practice Test for the TABE Test

George is getting ready to move abroad so he starts learning a new language. The first day, he studies for four minutes. Each consecutive day, he increases his study time by \(50\%\). Which of the following recursive formulas gives his new study time each day?

\[a_n = 1.5 a_{n-1}\]
\[a_n = 1.5 - a_{n-1}\]
\[a_n = 0.5 - a_{n-1}\]
\[a_n = 0.5 a_{n-1}\]

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