Calculate the monthly payment on a $$300,000$ mortgage if payment is

made at the beginning of each month, and the annual interest rate is $6$

percent for $30$ years. How much interest have you paid over the $30$ years?

Monthly Payment $=$ $$1,789\mathrm{.}70$; Total Interest $=$ $$344,293\mathrm{.}10$

Monthly Payment $=$ $$1,993\mathrm{.}25$; Total Interest $=$ $$413,097\mathrm{.}64$

Monthly Payment $=$ $$1,507\mathrm{.}68$; Total Interest $=$ $$289,677\mathrm{.}41$

Monthly Payment $=$ $$1,130\mathrm{.}40$; Total Interest $=$ $$206,942\mathrm{.}93$