please answer the two points

2. You currently have $4000 invested in a discount bond at an annual yield, I = 10%. If the face value of this bond is $5,500, what is the maturity of this bond? 3. A U.S. Treasury bill is currently selling at a discount basis of 3.25%. The par value of the bill is $100,000, and will mature in 180 days. What is the price of this Treasury bill