Attached below are the screenshots of the question I'm stuck on and the table used to solve it. I'm currently struggling with which formulas I should use to calculate and fill in the table.

What should a food worker use to retrieve ice from an ice machine?

Which of the following would create the most money? the initial deposit is $6,500 and the required reserve ratio is 20 percent. the initial deposit is $3,000 and the required reserve ratio is 10 percent. the initial deposit is $7,500 and the required reserve ratio is 25 percent. the initial deposit is $4,500 and the required reserve ratio is 15 percent.

Martha is one producer in the perfectly competitive jelly industry. last year, martha and all of her competitors found themselves earning economic profits. if there is free entry and exit, what do you expect to happen to the number of suppliers in the industry and the price of jelly? the number of suppliers will increase, and the price of jelly will fall. the number of suppliers will decrease, and the price of jelly will increase. the number of suppliers will increase, and the price of jelly will increase. the number of suppliers will decrease, and the price of jelly will fall.