So totally confused please help

Answer:The answer to your question is: r = 0.1Step-by-step explanation:DataP = $4500A = $9000t = 9 yearsr = rateFormula                             [tex]r = \sqrt[t]{\frac{A}{P}} - 1\\[/tex]Substitution                              [tex]r = \sqrt[9]{\frac{9000}{4500} - 1\\[/tex]Simplification                              [tex]r = \sqrt[9]{2} - 1[/tex]Result                              r = 1.08 - 1                              r = 0.08 ≈ 0.1