Which is a square matrix? 2.
3
-8
1
-5 19
0
-3
5.6
7.8
6
78
2
3
-8 0
-5 19
0
0
5
8
6
0
0 0
-6 -18
1
-4
0
3.5
0
-20
7
8
4
-0.4 16 18.5

There are 1872 steps in a building that has 104 floors. each floor has the same number of steps. a second building has the same number of floors but 2 fewer steps between each floor. how many steps are there between each floor of the second building?