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Jeanne's bank account earns interest annually. The equation shows her starting balance of 350 and her balance at the end of three years, 422.78. At what rate r did Jeanne earn interest? 422.78 = 350(1 + r)^3

Jeanne's bank account earns interest annually. The equation shows her starting balance of $350 \$ 350 and her balance at the end of three years, $422.78 \$ 422.78 . At what rate r did Jeanne earn interest?\newline422.78=350(1+r)3422.78=350(1+r)^{3}

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