Hello, I need help. I am not sure how to work out these 3 problems on excel. Can anyone help me I am not sure what formulas to use for excel. Thank you!!

4. Find the present value of $75,000 payable in 7 years and nine months at 5.875% interest compounded monthly. 5. Lowell Corporation wishes to establish a sinking fund to pay off a $ 200,000 debt that is due in 10 years. If the investment will earn 9% per year compounded quarterly, find the amount of the quarterly deposit that must be made to accumulate the required sum. 6. The manager of a money market fund has invested $ 4.2 million in certificates of deposit that pay interest at the rate of 5.4% per year compounded monthly over a period of 5 years. How much will the investment be worth at the end of 5 years