Hi, I am having with this question. Can you please provide an answer, and a brief explanation? Thanks.

2 3 4 5 6 First Cost $25,000 $25,000 $25,000 $25,000 $25,000 $25,000 Annual Benefit $8,000 $1,200 $3,300 $5,000 $7,500 $5,500 Life (yea rs) 10 20 30 15 6 10