In chapter 1, you learned that buying and selling textbooks are two separate decisions made at the margin. textbooks create value both when they are bought and when they are sold. think about your decision to buy the textbook for this course. you paid $225 for the book, but you would have been willing to pay $500 to use the book for the semester. suppose that at the end of the semester you could keep your textbook or sell it back to the bookstore. once you have completed the course, the book is worth only $70 to you. the bookstore will pay you 50% of the original $225. how much total value have you gained?

the total surplus will be: 275 + 32.5 = 307.5

Explanation:

At purchase,  the consumer surplus will be the difference between the amount willing to pay for the book and the book selling price:

500 - 225 = 275

Then, the selling surplus will be the difference between the amount you are willing to sold and the saelling price:

225 x 50% = 112.5

112.5 - 70 = 32.5

the total surplus will be: 275 + 32.5 = 307.5

you can lose ranking 2 ways.

1) you don't have enough points due to you expending them by asking questions/your answers are deleted.

2) your brainliest's expired. this means that brainliests, once they exceed the 30 day limit, expires. this is to ensure that you continue to contribute into the community at a constant rank if you want to continue to have/exceed the rank you have right now.

if you go to profile, and click "show more information" located on the bottom left of the box with your information (on top of the questions answered, questions asked, and friends), you will be given the following information (example):

member since : 02/13/2017, 18: 11

questions answered: 9741

questions asked: 162

no. of brainliest answers: 1575

brainliest answers in last 30 days: 10

warnings: 0 view

questions/answers reported: 2637

questions/answers incorrectly reported: 64

look at the "brainliest answers in the last 30 days". this is the one that will affect your rank other than your points. again, once your brainliest expires (was earned 31+ days ago), it will not be counted.

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b or d if i'm correct boi.