Which of the following are reasons that the short-run aggregate supply curve slopes upward? Check all that apply. As the price level rises, firms find it more profitable to hire workers at any given wage. As the price level rises, firms pay higher wages for workers. As the price level rises, firms expand their production because they can sell their output for more money.

As the price level rises, firms expand their production because they can sell their output for more money.

Explanation:

As the price level rises, supply increases as firms expand production to increase profits. And as price level falls, supply falls as firm reduce production. For this reason the short-run aggregate supply curve slopes upward.

Please find attached a graph showing the short-run aggregate supply curve

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.

c.

clarify customers’ doubts only when asked.