Respuesta :
Answer:
D.28000
Explanation:
Lets first understand what market supply is? Market supply is the accumulation/aggregation of total supply made by individual suppliers/vendors who are willing to provide at the current/prevailing prices. The market supply basically reflects the willingness of the vendors to supply goods/services at a given rate. Market supply can be either expressed in monetary terms or in terms of quantity.
So the market supply at $7.50 is as follows:
Market supply @ $7.50 = 12000 + 16000
Market supply @ $7.50 = 28000
It can be generally agreed that an increase in price can lead to an increase in supply by vendors, owing to the fact that the suppliers find a greater margin for themselves. Now in this question, we can see that at the price of $5 per pack of battery Duracell and Energizer sell 10000 and 15000 packs respectively and when the price rises to $7.50 both Duracells and Energizer sell more than what they were selling at $5 per pack.