I need an equation that equals 18

Step-by-step explanation:

There can be an infinite number of equations that equals 18.

Let us try this as a straight line in a coordinate plane

x+y =18

This solution will be all the points on the line whose x and y coordinates add up to 18

Example:

(1,17)(2,16)(0,18)(-1,19) and so on.  i.e. all the points on the line.

idc

step-by-step explanation:

idk

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|