Please assist with the given problem.
Question 1: What is the ending balance from an initial deposit of $4,250 at 12% compounded quarterly for 6 years?
Question 2: Find the present value of $5,000 in 5 years at 10% compounded annually.
Question 3: Find the value of an annuity in which $1,100 is deposited at the end of each year for 5 years, at an interest rate of 11.5% compounded annually.
Question 4: Determine the amount of each payment to be made to a sinking fund in order to pay off a $120,000 loan in 8 1/2 years when the funds earn interest at a rate of 10% compounded semiannually.