Question

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Answer 1

Phew, been a while since economics class. I'll have to look up some of these terms first.
*looks around for old college textbooks*

Answer 2

sorry dont know accounting

Answer 3

This is the extent of my knowledge (cribbing Wikipedia)
The market supply curve is obtained by summing the quantities supplied by all suppliers at each potential price. Thus in the graph of the supply curve, individual firms' supply curves are added horizontally to obtain the market supply curve.

Answer 4

"If the market demand curve for this industry is P = 10 – (1/500)Q, what are the
equilibrium price and equilibrium quantity?"

This seems like you can set the two equations equal and solve for Q, then sub back in to find P.

P = 1 + Q.
P = 10 – (1/500)Q

1 + Q = 10 – (1/500)Q