8 is the total number of markers in the bag. There are 3 out of 8 that are red. 8-3=5 so there are 5 out of 8 markers that are not red and that are other colors - or 5/8 are other colors.
You know that -3 is the Y intercept(vertical graph line) and then continue 2/1 every x value that is plugged in.
- don't know what you mean, but maybe the graph?
Answer:
You can use ur ruler the ruler that's in half