1-1=0 lol how do u not know this ???
First we have to divide 135,000 by 90, which equals 1,500. Then we divide 1,500 (seconds) by 60 (60 seconds in a minute) and get: 25 Minutes.
454.90, the 5 makes the 9 go up which in turn makes the 8 also go up.
The conjecture is False. A,B,C are in one plane, D is above the plane, therefore the points are not coplanar.
The statement doesn't specify where the points are.