Answer:
6 book purchases.
Step-by-step explanation:
As the bookstore sells frequent buyers discount cards at $ 12, which make the books that usually cost $ 9 cost $ 7, to determine from how many books a card-holder and a common buyer will spend the same amount of money is necessary perform the following calculation:
9 - 7 = 2
12/2 = 6
Therefore, after purchasing 6 books, both categories of buyers will have spent the same amount of money. This is verified with the following calculation:
Card holder = 12 + 7 x 6 = 54
Non-card holder = 9 x 6 = 54
Answer:
Step-by-step explanation:
Thank you! For letting me know
Hi there! I can help you! Okay. The numbers are separate from each other. One is negative and the other is positive. To solve this problem, let’s find the absolute value of both numbers and add them up. The absolute value is a number’s distance from 0 and the answer is always positive. The absolute value of -7 is 7. The absolute value of 3 is 3. 7 + 3 = 10. The distance between -7 and 3 is 10. The answer is D: 10.
The graph of the function is drawn. The open circle at -1 and 4 for -2x + 3.
The complete question is attached below.
<h3>What is a piecewise function?</h3>
The function that is transformed into the number of pieces is known as piecewise function.
The piecewise function is given below.

The graph of the function is drawn.
The open circle at -1 and 4 for -2x + 3.
More about the piecewise function link is given below.
brainly.com/question/12561612
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