Economics assignment need tutor help

PLEASE MAKE 12 PT ARIAL ALL ORIGINAL

What is the marginal rate of substitution (MRS) and why does it diminish as the consumer substitutes one product for another? Use examples to illustrate.
Guided Response:
In 300 words or more, please, provide your response to the above discussion question. Find two goods from your own consumption basket and explain how the MRS changes for the two products as you substitute one for the other.

Please, read the article Hainer, R. (2010), provided in the required readings section for this week. The tobacco industry is a prime example to consider when talking about price elasticity of demand. While nicotine use can be addictive for many users, it is not addictive for the so-called “social smokers”.
What can we say about the price elasticity of demand for nicotine products (such as cigarettes, pipes, tobacco) in the group of nicotine addicted users, versus the group of “social smokers”? Can we say whose demand is likely to be more elastic? Why?
Guided Response:
Provide your response to the discussion question in 300 words or more. Further, comment on the effectiveness of government policy aimed at reducing the negative effects of smoking on health. For example, consider high taxation on producers? – is that effective?