a$.$ If Dave had borrowed $$180$ for one year at an APR of $8$ percent, compounded monthly, what would have been his monthly loan payment?$($Do not round your intermediate calculations. Round your final answer to $2$ decimal places.$$Omit the $"$$$"$ sign in your response.$)$

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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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$$Interest$ $$Principal$ $$