1.) For an annual interest rate of 2.75%(compunded semi-annually), what mortgage loan can be obtained with constant bi-weekly payments of $1,000 over 25 years? Why it is more or less than $500,000?

2.) For an annual interest rate of 2.75%(compunded semi-annually), what mortgage loan can be obtained with constant annual payments of $26,000 over 25 years? Why your answers are different in 1) and 2) even though you make the same annual payment of $26,000