9514 1404 393
Answer:
   (a) -4 dollars
   (b) +343 members
Step-by-step explanation:
(a) The change in the value of each share is the total amount of change divided by the number of shares:
   change per share = (total change)/(number of shares)
   change per share = (-40 dollars)/(10 shares) = -4 dollars/share
The change in value for each share was -4 dollars.
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(b) As with most rate problems, the quantity is the product of rate and time.
   growth = (7 members/week) × (49 weeks) = 7×49 members
   growth = 343 members
The change in the club's size was +343 members.