here is a concern that carbon emissions that are a byproduct of the burning of coal and other fuels contributes to global warming. One proposed solution is to tax the use of these fuels based on their carbon content. The following table gives information on the demand and supply of coal:

Price ($/ton)	400	350	300	250	200
Quantity demanded	10	12	14	16	18
Quantity supplied	18	16	14	12	10

What will be the free-market price and quantity, and what will be the price and quantity if the government requires suppliers to pay a $100 tax for each ton of coal produced?