The number 6 is halfway between 2.8 and ... ?

the number 6 is halfway between - 12 and ... ?

If 6 is halfway between 2.8 and x, then the distance from 2.8 to 6 is 1/2 the distance from 2.8 to something

find the distance

6-2.8=3.2

1/2 distance=3.2

multiply by 2 to find whole distance

3.2 times 2=6.4

add

2.8+whole distance=2.8+6.4=9.2

6 is halfway between 2.8 and 9.2

6 is halfwa between - 12 and something

find distance

6 - (-12) = 6+12=18

1/2 distance=18

times 2

18*2=36

add

-12+36=24

6 is halfway between - 12 and 24

blanks are

6 is halfway betwen 2.8 and 9.2

6 is halfway betwen - 12 and 24