Solve question 1. Only and explain your work

1. As the manager at the local Save-a-lot, you are thinking of hiring one more cashier that would increase sales revenues by $400 per week. The new cashier would earn $300 per week. Should you hire the new cashier? Why? 2. You pay $12/month for access to Netflix, regardless of how many movies or TV shows you watch in a month. Should you watch one more movie (or episode)? Why? 3. You are selling your black 1967 Chevy Impala. You have already spent $2,000 on repairs. At the last minute, the transmission dies. You can pay $1,400 to have it repaired, or sell the car "as is." In each of the following scenarios, should you have the transmission repaired? Explain. A. Bluebook value (what you could get for the car) is $14,500 if transmission works, $11,200 if it doesn't. B. Bluebook value is $12,300 if transmission works, $11,000 if it doesn't