Suburb A has a high burglary rate and they are

considering the installation of anti-theft alarms. Each resident is willing to

pay $30 for each additional anti-theft alarm installed in the suburb. There are 178 residents in the suburb. The marginal cost of installing another anti-theft

alarm is 10

(In integers, please.)

Suppose the supply curve of oranges is P = 2.5Q

. The free-market equilibrium price is $10. The government wants to impose a price

ceiling at $2. As a result of this price control, we expect producer surplus to

decrease by $

(In decimal numbers, with two decimal places, please.)

Debra is thinking about going to Disneyland with her friend.  Debra is

willing to pay HK$X to go to Disneyland.  A ticket to Disneyland costs HK$428 and she will have to cancel her part-time job that pays HK$449.  Normally, she

would be unwilling to do the part-time job for less than HK$268.  (Debra views the unpleasantness of the part-time job as an offset against her 

(In decimal numbers, with two decimal places, please.)