I have no idea what it is but I need to answer somthing so... ;-;
Step-by-step explanation:
72 i rounded it to that
The decimal representation for 4/5 would be,
0.8
Hope it helped. It's all I could do.
It is a very simple answer but it works!
The fourth one: the slope from point O to point A is two times the slope of the line from point A to point B