Please Help me with these 3 questions!!!

#1

Four different choices are given to determine the unknown value of X from the cash flow diagram given below. Use an interest rate of i =6%.

A. X= {20,000 2,000(P/A, 6%, 6) +100(P/G, 6%, 5)} (P/F, 4%, 6)

B. X= {20,000 2,000(P/A, 6%, 6) +100(P/G, 6%, 6)} (P/F, 6%, 6)

C. X= {20,000 2,000(P/A, 6%, 5) +100(P/G, 6%, 5)} (F/P, 6%, 6)

D. X= {20,000 2,000(P/A, 6%, 6) +100(P/G, 6%, 6)} (F/P, 6%, 6)

#2

For the cash flow diagram below, determine the value of P

A. $119.26

B. $71

C. $147.20

D. $195.49

#3

Given the cash flow diagram below, evaluate the value of A for an interest rate of 7%.

A. $915

B. $1200

C. $585

D. $1045.72

And please explain, Thank you!!!!!!!!!!!!!!!!!!1

S20K 0 1 2 S2 000 S1,900 $1,800 $1,700 $1,600