You got a $90,000 mortgage. The bank gave it to you for 30 years (360 months) and offered a fixed nominal rate of 9% (monthly payments).

Hi! I have a couple questions I need help answering:

1. You got a $90,000 mortgage. The bank gave it to you for 30 years (360 months) and offered a fixed nominal rate of 9% (monthly payments). What % of the total payments made the first two years will go toward repayment of interest? 
2. You know the following information. A 10-year security will get you $2000/year at the end of each of the next 3 years (t = 1, 2, 3). After initial 3 years, this security will pay some constant cash flow (CF) at the end of each of the next 6 years (t = 4, 5, 6, 7, 8, 9). 10 years from now (t = 10) this security will mature and pay you $10,000. You can buy it for $24,307.85. Its yield to maturity is 7.3%. How much does the security pay for years 4 through 9? (hint: it is constant for years 4, 5, 6, 7, 8, and 9).  

Thank you!

Kaylie