Brandie lives on the twelfth floor of her apartment building. she walks down 2 flights to visit a friend, then up 3 flights to deliver a message to a neighbor. which integer best represents the number of flights brandie must walk to get back to her starting point?

-1

Step-by-step explanation:

It is given that Brandie lives on the twelfth floor of her apartment building.

Initial position = 12 th floor

She walks down 2 flights to visit a friend, So the change in her initial position is -2. New position of Brandie is

After that she walk up 3 flights to deliver a message to a neighbor. So the change in her position is 3. New position of Brandie is

Now, the Brandie reached on the 13th floor of her apartment building. To get back to her starting point that is 12th floor, she must walks down 1 flight.

1 flight down = -1

Therefore, the integer -1 represents the number of flights Brandie must walk to get back to her starting point.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

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step-by-step explanatio89