I may be wrong but I believe it was copper that’s why some america coins are still made out of it today
        
             
        
        
        
Its usually the M1152 model of hmmwvs 
 
        
             
        
        
        
Answer:
increase in output, but not in the equilibrium price of the product. 
Explanation:
The options weren't provided. The full question can be found here - https://www.chegg.com/homework-help/questions-and-answers/perfectly-competitive-industry-x-constant-costs-product-inferior-good-industry-currently-l-q39354625
An inferior good is a good whose demand increases when income falls and whose demand falls when income rises.
When average income falls, the demand for good X rises. The level of output increases as a result of the rise in demand but price doesn't change. 
I hope my answer helps you. 
 
        
             
        
        
        
If the steps are small, a step-variable cost may be approximated using a Variable cost function without significant loss in accuracy.
<h3>Variable cost function</h3>
- An expense for the company that varies according to how much is produced or sold is called a variable cost. 
- Depending on a company's production or sales volume, variable costs grow or fall. They climb as production rises and reduce as production declines.
- It is a production cost whose level fluctuates in response to shifts in a business's manufacturing activities. 
- For instance, the raw materials required to make a product's components are regarded as variable costs because they frequently change depending on the volume of units produced.
- The total variable cost curve depicts the relationship between total variable cost and the volume of output produced graphically.
To learn more about the Variable cost function refer to:
brainly.com/question/27996021
#SPJ4
 
        
             
        
        
        
Answer:
selling expense
Explanation:
The cost which is charged to manufactured a product is known as product cost
Plus product cost is a combination of direct material; direct labor and indirect cost i.e indirect material and indirect cost
In mathematically, 
Product cost = Direct materials cost + Direct labor cost + manufacturing overhead cost
The indirect cost is also known as manufacturing overhead cost. 
The cost which is charged to manufactured a product is known as product cost