The annual worth for years 1 through infinity of $50,000 now, $10,000 per year in years 1 through 15, and $20,000 per year in years 16 through infinity at 10% per year is closest to

The annual worth of cash flow is $17,394

Explanation:

The computation is shown below:

Present value  = F × (P|F,i,n) + A × (P|A,i,n)

= $50,000 + $10,000 × (P|A,10%,15) + ($20,000 ÷ 0.1) × (P|F,10%,15)

= $50,000 + $10,000 × 7.606 + ($20,000 ÷ 0.1) × 0.2394

= $173,940

Now

Annual Worth is

= P × (A|P,i,n)

= $173,940 × (A|P,10%,infinity)

= $173,940 × 0.1

= $17,394

Hence, the annual worth of cash flow is $17,394

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.