Gulmirah, a small underdeveloped country, has an adult population of 16.8 million, and the remaining 13.75 million of the population is below 18 years of age. the approximate output per capita of this country is $644.80. the gdp of gulmirah is equal to approximately

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Until recently, hamburgers at the city sports arena cost $4.70 each. the food concessionaire sold an average of 13 comma 000 hamburgers on game night. when the price was raised to $5.40, hamburger sales dropped off to an average of 6 comma 000 per night. (a) assuming a linear demand curve, find the price of a hamburger that will maximize the nightly hamburger revenue. (b) if the concessionaire had fixed costs of $1 comma 500 per night and the variable cost is $0.60 per hamburger, find the price of a hamburger that will maximize the nightly hamburger profit.