Calculate the equal quarterly series equivalent to the decreasing gradient series given below. Assume the interest rate is 8%. SHOW WORK.

a. $10,000 at the end of 1st Quarter

b. $9,500 at the end of 2nd Quarter

c. $9,000 at the end of the 3rd Quarter

d. $8,500 at the end of the 4th Quarter

e. $8,000 at the end of the 5th Quarter

f. $7,500 at the end of the 6th Quarter

g. $7,000 at the end of the 7th Quarter

h. $6,500 at the end of the 8th Quarter

i. $5,000 at the end of the 9th Quarter

j. $4,000 at the end of the 10th Quarter

k. $3,000 at the end of the 11th Quarter

l. $2,000 at the end of the 12th Quarter