Wyatt purchased a home for $725,000 with a down payment of 16% and the rest amortized over 42 years with weekly payments. He secured an interest rate of 3.45% compounded semi-annually for a 4 year term. What is the size of the weekly payments for the first 4 years? What will the size of the new weekly payments if he renewed for another 6 year term at 2.85% compounded monthly? Determine the size of the payments if he decided to change the frequency to bi-weekly instead of weekly.