a$.$ If Dave had borrowed $$400$ for one year at an APR of $5$ percent, compounded monthly, what would have been his monthly loan payment? $($Do not round your intermediate calculations. Round your final answer to $2$ decimal places. Omit the $"$$$"$ sign in your response.$)$

PMT

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b$.$ What would have been the breakdown between interest and principal of the fifth payment? $($Do not round your intermediate calculations. Round your final answers to $2$ decimal places. Omit the $"$$$"$ sign in your response.$)$

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