Question 398189
The profit function for the Recklus Hang gliding Service is 
P(x) = -0.4x^2 + fx - m, where f represents the set up fee for a customer’s daily excursion and m represents the monthly hanger rental. 
Also, P represents the monthly profit in dollars of the small business where x is the number of flight excursions facilitated in that month.
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a) If $40 is charged for a set up fee, and the monthly hanger rental is $800; write an equation for the profit, P, in terms of x. 
Typing hint: Type x-squared as x^2 
Answer: P(x) = -0.4x^2 + 40x - 800
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b) How much is the profit when 30 flight excursions are sold in a month? 
Answer: P(30) = -0.4(30^2) + 40*30 - 800
P(30) = -360 + 1200 - 800
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P(30) = $40
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Cheers,
Stan H.