Ibuy a hat for $12 and give the cashier $20. how much change do i receive? what is the expression?

20-12=8

Step-by-step explanation:

so your giving the cashier 20 and it cost 12 you get 8 back

Step-by-step explanation:20-12=6 because 20 is what you have him and 12 is how much it costs so you would do 20 minus 12

1 is c

2 is a

3 is a

step-by-step explanation:

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)