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Mathematics 19 Online
OpenStudy (anonymous):

Henry Devine bought a new dishwasher for $320. He paid $20 down and made 10 monthly payments of $34. What actual yearly interest rate did Henry pay? A. 29.09 B. 14.55 C. 68.75 D. 34.38 I've done the math twice now and came up with the same answer which was B. I submitted into my test and got it wrong. I've been looking all over for help on how to do it or the answer and I can't figure it out. Someone please help me! Please and thank you.

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