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Montmorency puppies sells puppies. The demand for their puppies is given by the following demand equation: qd = 180 – 6pp + 3pk + 0.007m + 2a, where qd is the quantity of puppies demanded, pp is the price of puppies, pk is the price of kittens, m is income, and a is the advertising expenditure of montmorency puppies.

If montmorency puppies charges $35 per puppy, kittens sell for $20, they spend $10 on advertising and income is 15,000

(a)how many puppies are sold? (b)state the demand equation and the inverse demand equation. (c)calculate the consumer surplus at the price above.