The difference between n and 12 is 20

N-12 = 20

N=32

Step-by-step explanation:

Difference means subtract, is means equals

N-12 = 20

Add 12 to each side

N-12+12 =20+12

N = 32

4 puzzles in 3 hours

step-by-step explanation:

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|