Answer:
$170
Step-by-step explanation:
As we know that
Total cost = Total fixed cost + total variable cost
The total fixed cost would remain the same whether the production level increases or not but the case is not the same as the total variable cost. In total variable cost, the output will change as per the production level changes
When output was 4 units per week, The total cost would be
= Total fixed cost + total variable cost
= $100 + $70
= $170