Bertrand collects movie posters. The number of movie posters in his collection changes each month as he buys and sells posters. The table show how many posters he brought or sold in the given months.

January sold 20, February bought 12, March bought 22, April sold 28.

1. Which months have changes that can be represented by positive numbers? Which months have changes that can be represented by negative numbers?

2. Which month did the size of Bertrand's poster collection change the most? Use absolute value to explain your answer. My answer is the month of March which is -10.

7. Analyze Relationships Bertrand collects movie posters. The number

of movie posters in his collection changes each month as he buys and sells posters. The table shows how many posters he bought or sold in the given months.
Month January February March April Posters Sold 20 Bought 12 Bought 22 Sold 28
a. Which months have changes that can be represented by positive numbers? Which months have changes that can be represented by negative numbers? Explain.
February and March represent positive numbers because Bertrand bought posters. January and April represent negative numbers because Bertrand sold posters.
b. According to the table, in which month did the size of Bertrand’s poster collection change the most? Use absolute value to explain your answer.
April; He sold 28 posters which can be represented by -28. The absolute value of -28 is 28, the greatest absolute value of any month.
8. Earth Science Death Valley has an elevation of -282 feet relative to sea level. Explain how to use absolute value to describe the elevation of Death Valley as a positive integer.
The absolute value of -282 is 282 so Death Valley is 282 feet below sea level

can someone please help me with these questions?

The absolute value of so death valley -282 is 282 is 282 feet below sea level

To answer these questions, let's analyze the table of changes in Bertrand's movie poster collection:

- January: -20 (sold 20 posters)
- February: +12 (bought 12 posters)
- March: +22 (bought 22 posters)
- April: -28 (sold 28 posters)

1. To determine which months have changes represented by positive or negative numbers, we need to identify if Bertrand bought or sold posters in each month.
- Positive numbers represent increases in the collection, meaning Bertrand bought posters.
- Negative numbers represent decreases in the collection, indicating that Bertrand sold posters.

According to the table:
- January has a change represented by a negative number (-20), indicating that Bertrand sold 20 posters.
- February and March have changes represented by positive numbers (+12 and +22), meaning Bertrand bought 12 and 22 posters, respectively.
- April has a change represented by a negative number (-28), showing that Bertrand sold 28 posters.

So, the months with changes represented by positive numbers are February and March since Bertrand bought posters during those months. The months with changes represented by negative numbers are January and April as Bertrand sold posters during those months.

2. To determine the month with the largest change in Bertrand's poster collection, we consider the absolute value of each change.
- Absolute value refers to the magnitude of a number without considering its sign.

Looking at the absolute values of the changes:
- January: |-20| = 20
- February: |+12| = 12
- March: |+22| = 22
- April: |-28| = 28

The month with the largest absolute change in Bertrand's poster collection is April, with an absolute change of 28 posters. Therefore, your answer is incorrect. The correct answer is that the month of April had the greatest change in Bertrand's poster collection.

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