TFC (Total Fixed Cost)
Total Fixed Cost (TFC) refers to the total cost incurred by a firm in the short run that does not change with the level of output produced. It includes expenses such as rent, salaries, insurance, and other fixed costs that are independent of the level of production.

To calculate TFC, we need to determine the fixed cost component of the total cost at each level of output.

TVC (Total Variable Cost)
Total Variable Cost (TVC) refers to the total cost incurred by a firm in the short run that varies with the level of output produced. It includes expenses such as raw materials, direct labor, and other variable costs that increase as production increases.

To calculate TVC, we need to determine the variable cost component of the total cost at each level of output.

Calculating TFC and TVC
Let's calculate TFC and TVC using the given data:

Output (Q) | Total Cost (TC)
--------------------------------
0 | 50
1 | 65
2 | 90
3 | 120
4 | 160

Step 1: Calculate TVC
TVC can be found by subtracting TFC from TC at each level of output.

Output (Q) | Total Cost (TC) | TFC | TVC
-----------------------------------------------
0 | 50 | ? | ?
1 | 65 | ? | ?
2 | 90 | ? | ?
3 | 120 | ? | ?
4 | 160 | ? | ?

Step 2: Calculate TFC
To determine TFC, we need to find the fixed cost component of the total cost. We can do this by subtracting TVC from TC at each level of output.

Output (Q) | Total Cost (TC) | TFC | TVC
-----------------------------------------------
0 | 50 | ? | ?
1 | 65 | ? | ?
2 | 90 | ? | ?
3 | 120 | ? | ?
4 | 160 | ? | ?

Step 3: Determine TVC and TFC values
To find the values of TVC and TFC, we can use the following equations:

TVC = TC - TFC
TFC = TC - TVC

Output (Q) | Total Cost (TC) | TFC | TVC
-----------------------------------------------------
0 | 50 | ? = 50 | ? = 0
1 | 65 | ? = 50 | ? = 15
2 | 90 | ? = 50 | ? = 40
3 | 120 | ? = 50 | ? = 70
4 | 160 | ? = 50 | ? = 110

Step 4: Final Calculation
After calculating TVC and TFC at each level of output, we get the following values:

Output (Q) | Total Cost (TC) | TFC | TVC
-----------------------------------------------------
0 | 50 | 50 | 0
1 | 65 |