During the previous​ month, a firm produced 300


tablet devices and its total costs were ​$18 comma 900
.
Just before the firm produced its last tablet device in the previous​ month, its total costs were ​$18 comma 817
.
The marginal cost incurred by the firm in producing the final tablet device that month was

$83

To calculate the marginal cost incurred by the firm in producing the final tablet device in the previous month, we need to find the difference in total costs before and after producing the device.

Total costs before producing the final tablet device = $18,817
Total costs after producing the final tablet device = $18,900

Marginal Cost = Total costs after - Total costs before
Marginal Cost = $18,900 - $18,817
Marginal Cost = $83

Therefore, the marginal cost incurred by the firm in producing the final tablet device in the previous month was $83.

To calculate the marginal cost of producing the final tablet device, we need to find the difference in total costs before and after producing the final tablet device.

The total costs before producing the final tablet device was ​$18,817, and the total costs after producing the final tablet device was ​$18,900.

To find the marginal cost, we subtract the total costs before from the total costs after:

$18,900 - $18,817 = $83.

Therefore, the marginal cost incurred by the firm in producing the final tablet device that month was ​$83.