You and your significant other are contemplating the purchase of a home. Your combined family income is $80,000 per year. You know that mortgage lenders use a rule of thumb that the limit on the size of a mortgage loan is that no more than 30% of a family's income should go to the payment of principal and interest. What is the maximum purchase value of a home that you and your partner could purchase assuming that you have a 10% down payment through savings? Assuming one annual mortgage payment instead of 12 monthly payments per year, answer this question for these four cases:

i) 20-year amortization

ii) 30-year amortization

iii) mortgage interest rate of 7%

iv) mortgage interest rate of 11%

(I think it's saying, for example, case 1 20-year amortization with 7% interest, case 2 20-years with 11% interest, etc.)