Answer:
a collection of screen names, like on your phone where you keep all your friends' phone number
Answer:
(I) Price elasticity = 1/6
(II) the $2.5 price gives the higher revenue: 1,250
Explanation:
(I) price elasticity

↑Q (500 - 300)/((500+ 300) / 2)
↑Q 200 / (800/2) = 200/400 = 1/2
↑P (3.5 - 2.5)/((3.5+2.5)/2)
↑P 1/(6/2) = 1/3

(II) total revenue
3.5 x 300 = 1,050
2.5 x 500 = 1,250
Open-ended credit is credit that can be used repeatedly.
Example: A credit card
Close-ended credit is credit that has to be paid in full by a certain date
Example: A house loan (mortgage)
Answer:
There could be many reasons to this, there could be many possible reasons, managers need to carefully analyse what might be the cause.
Job advertisement might not be posted in the appropriate newspapers, websites and magazines. Here IBM human resource manager needs to find the most appropriate sources to put the ads.
IBM might not getting the right candidates because the current candidates might positing some negative reviews about its working conditions, here managers need to address this issue properly but figuring out the actual root cause for this problem.
IBM might not presenting the idea of diverse workforce in their recruiting advertisement, here they need to show diverse workforce in their hiring ads.