How would I find the formula for these problems? Please help me.. I would really appreciate it.. thank you

Calculate the present value of the following:
$7,000 in 5 years at an annual discount rate of 6%

$7,000 in 5 years at a semiannual discount rate of 6%

$7,000 in 5 years at a quarterly discount rate of 6%

$7,000 in 6 years at an annual discount rate of 6%

To find the present value of future cash flows, we need to use a formula called the present value formula. The present value formula calculates the current value of a cash flow by discounting it back to its present value.

The general formula for calculating the present value (PV) is:

PV = CF / (1 + r)^n

where:
PV = Present value
CF = Cash flow
r = Discount rate
n = Number of periods

Now let's apply this formula to solve each of the given problems:

1. Calculate the present value of $7,000 in 5 years at an annual discount rate of 6%:
PV = $7,000 / (1 + 0.06)^5

2. Calculate the present value of $7,000 in 5 years at a semiannual discount rate of 6%:
To calculate the semiannual discount rate, divide the annual discount rate by 2: 0.06 / 2 = 0.03
Then, calculate the present value using the formula:
PV = $7,000 / (1 + 0.03)^10

3. Calculate the present value of $7,000 in 5 years at a quarterly discount rate of 6%:
To calculate the quarterly discount rate, divide the annual discount rate by 4: 0.06 / 4 = 0.015
Then, calculate the present value using the formula:
PV = $7,000 / (1 + 0.015)^20

4. Calculate the present value of $7,000 in 6 years at an annual discount rate of 6%:
PV = $7,000 / (1 + 0.06)^6

By plugging in the values and applying the formula, you will be able to compute the present value for each of the given scenarios.