Answer
given,
Price of the stock = Â $36
stock price fall per day = Â $1.50
number of days price fall = 7 days
a) the price of the stock changes by = $1.50 x 7
                              = $10.5
  Price of stock decreased by $10.5
b) Price of stock after 7 days
           = $36 - $10.5
           = $25.5
  the value of stock after 7 days is equal to $25.5
