Calculating monthly mortgage payments

Find the monthly mortgage payments on the following mortgage loans using either your calculator or the Excel spreadsheet.

a$.$ $$180,000$ at $9\mathrm{.}0$ percent for $10$ years. Do not round intermediate calculations. Round the answer to the nearest cent. $

b$.$ $$105,000$ at $5\mathrm{.}5$ percent for $20$ years. Do not round intermediate calculations. Round the answer to the nearest cent.

c$.$ $$95,000$ at $5$ percent for $15$ years. Do not round intermediate calculations. Round the answer to the nearest cent.

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