229) A grocery store should close at night if the

variable costs of staying open are less than the total revenue due to staying open

total costs of staying open are less than the total revenue due to staying open

variable costs of staying open are greater than the total revenue due to staying open

total costs of staying open are greater than the total revenue due to staying open.

Answer is:

variable costs of staying open are greater than the total revenue due to staying open

the minimum of their average-total-cost curves

all of these answers are correct.

their efficient scale.

zero economic profit.

Answer is:

implicit costs

variable costs

the sum of implicit and explicit costs.

explicit costs.

Answer is:

variable costs

implicit costs

explicit costs.

marginal costs.

Answer is:

Rs. 30,000

Rs. 35,000

Rs. 70,000

Rs. 75,000

Answer is: