Find the gcf of each pair of numbers.

10 and 45 21 and 40 60 and 72 28 and 32 30 and 45 25 and 90 28 and 70 45 and 81 55 and 77

the answer is c)8

step-by-step explanaction:

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|