It is 0.0000000214
0.0038
There are 10 millimetres in one centimetre. Therefore, 2104 millimetres is equal to 2104/10 = 210.4 centimetres.
8 and 2
1, 2, 4, 8, 263, 526, 1052, 2104.
10
-12
-28
-8 and -2
12
-154
40, 80, 120
3 and 7 multiplies to 21 and equals to 10