The crying will be more difficult to control if they do not stick to a consistent reinforcement plan. 
The partial reinforcement effect says <em>resistance </em>to learning is greater when the good/bad behavior is only reinforced part of the time. 
 
        
             
        
        
        
The limits of the terms of trade are determined by the comparative cost conditions in each country before trade:
Less commerce occurs as a result of partial specialization and rising costs than when costs are constant. The cost advantage one country has over another serves as the foundation for commerce. This explains why some countries make things that they also import since they are able to do so for less money than their trading partners.
What is comparative cost ?
Comparative costs refers to comparing, using a comparative costs approach, the costs of signing into a privatized contract to the expenses of the state maintaining to provide the services that are the subject of the contract.
Therefore,
Less commerce occurs as a result of partial specialization and rising costs than when costs are constant. The cost advantage one country has over another serves as the foundation for commerce. This explains why some countries make things that they also import since they are able to do so for less money than their trading partners.
To learn more about comparative cost from the given link:
brainly.com/question/8141905
 
        
             
        
        
        
Answer:
a. $72,000
b. $0.36 
c. $6,480
Explanation:
a. Depreciation cost = Cost of truck - Residual value
= $80,000 - $8,000
= $72,000
b. The depreciation rate = (Cost of truck - Residual value) ÷ Estimated total production
= ($80,000 - $8,000) ÷ 200,000 miles
= $72,000 ÷ 200,000 miles
= $0.36 
c. The units-of-activity depreciation for the year per mile = Driven miles × Depreciation rate
= 18,000 × $0.36
= $6,480
 
        
             
        
        
        
The after sales services are included in the product category of market mix.  Option C
<u>Explanation:
</u>
The set of ideas or actions taken by a business entity or a company to promote its product or brand in the market. The four P’s of marketing mix are namely,
- Product - The end product that is offered for sale.
- Price – The value set for the finished good for selling.  
- Place – Direct or indirect markets.
- Promotion – Public relations, advertising, etc.,
From the given, discounts comes under pricing, product image used in advertising comes under promotion and substitute goods belong to a different topic. After-sales services comes under the service branch of the product category.
 
        
             
        
        
        
Answer:
Of course Jo-Anne Roberts can keep the apartment.
Explanation:
Jo-Anne and the previous owner of the apartment had a valid contract by which Jo-Anne was to pay $3.7 million for the apartment. She has already partially completed her performance on the contract, so the seller must perform his part of the contract.