Let market demand in the cement industry be given byQ(P) = 200−P. There are only two firms in the industry that compete on quantities (CournotCompetition). The total cost function for firm 1 and firm 2 isT C(q1) = 20q1+ 400andT C(q2) = 20q2+ 400, respectively

For which intervals is the function positive? select each correct answer. [-6, -4) (6, 8] (-4, 0) (0, 6)

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Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?