Could someone please help me solve the finance problems, I do not understand any of them please help me Thanks in advance!!?

Present Value "PV" = Future Value "FV" / ( 1 + r)^n, where r is in decimal form

...you will need to find the periodic r, and the total n

a. 8.9 percent compounded monthly for five years.

Present value $

r = 0.089/12 months = = 0.007417

n = 5 yrs x 12 months per year = 60

PV = 2800 / (1.007417^60)

= 2800 / 1.557961

= $1,792.22

b. 6.6 percent compounded quarterly for eight years.

Present value $

r = 0.066 / 4 = 0.016500

n = 8 x 4 = 32

PV = 2800 / 1.016500^32

c. 4.3 percent compounded daily for four years.

Present value $

r = 0.043 / 365 = 0.000118

n = 365 x 4 = 1,460

you can DO this! just follow the formula

d. 5.7 percent compounded continuously for three years.

Present value $

continuous compounding gets a little tricky

PV = P / e^(r*t), just remember "Pert", where * means multiply, and t = time, P = principal, e is a constant for continuous compounding equivalent to 2.718282 <since you've been asked to round to 6 places...

PV = 2800 / 2.718282^(0.057*3)

= 2800 / 1.186491

= $2,359.90 rounded to 2 decimal places

Question 3

Trigen Corp. management will invest cash flows of $995,874, $1,295,960, $984,064, $818,400, $1,239,644, and $1,617,848 in research and development over the next six years. If the appropriate interest rate is 8.69 percent, what is the future value of these investment cash flows six years from today? (Round answer to 2 decimal places, e.g. 15.25.)

FV = PV(1 + r)^n

Assuming that the investments are made at the beginning of each year...

the first cash flow "CF" will be invested for 6 years, the second CF for 5 years, the third for 4 years and so on...

FV of CF 1 = $995,874(1.0869^6)

FV CF2 = CF2(1.0869^5)

FV CF3 = CF3(1.0869^4)

FV CF4 = CF4(1.0869^3)

FV CF5 = CF5(1.0869^2)

FV CF6 = CF6(1.0869)

then add them all up

Question 4...$521,000 today, plus $521,000 at the end of each of the following six years for permission to do this. If the appropriate interest rate is 8 percent, what is the present value of the cash flow stream

it is 521,000 + the PV of the ordinary annuity...

PVoa = PMT[(1 - ( 1 / (1 + r)^n)) / r]

= 521,000[(1 - (1 / 1.08^6)) / 0.08]

= 521k[(1 - (1 / 1.58674)) / 0.08]

= 521k[(1 - 0.63017) / 0.08]

= 521k[4.62288]

= $2,408,520.305, add the $521k paid "today" and round = $2,929,520

FYI - I didn't round any intermediate numbers, my calculator "remembers" all the digits after the decimal.