Please help with these problems. Thank you I am dieing here.

'I. A perpetuity-immediate pays $50 per quarter and has a present value of $2,000 at an annual effective interest rate of i. A 30-year annuity pays $10,000 at the end of every 2 years. Using interest rate 1' calculate the present value of the 30-year annuity three years prior to its rst payment. 2. Hal borrows $100,000 from Gloria for 10 years. Hal makes payments to Gloria at the end of each year equal to the sum of a) a constant payment toward principal and b) interest on the outstanding balance at an annual effective rate of 4%. Gloria reinvests the interest payments at an annual effective rate of 5%. At the end of 10 years the accumulated value of Gloria's reinvested interest payments is K. Determine X. 3. A 20-year 1000 par value bond with 7% annual coupons can be called by the issuer at par on any coupon date immediately afterthe coupon has been paid. starting with the 8th coupon date. Sandy wants to buy this bond at a price of )(that will guarantee that she will earn a yield rate of 5% or more. Determine X