Kiera already has 12 plants in her backyard and she can also grow 1 plant with every seed packet she uses. How many seed packets does Kiera need to have a total of 24 plants in her backyard?

12

Step-by-step explanation: 24 - 12 times 1

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|