Answer:
that is the orgin which means the middle.
Step-by-step explanation:
1 19/21
12/21+1 +7/21
19/21+1
The answer would be 6s-54=48.
In algebra, parenthesis means multiply. 6*s= 6s. 6*9=54. The answer would then be 6s-54=48.
-3 and 23
Adding -3 and 23, you get 20. On a number line, 23 is 26 places from -3.
with 
and 
with 
. You end up with
and 
.