It is: 0.5
0.5
0.5
0.5
It is: 0.5
To the nearest whole number, 1
the lest number 1-9
There are infinite amount of numbers that can be rounded to one:0.990.9990.99990.9980.9970.9961.011.051.4999999999, etc.
The answer is 2,000,000
Try: 2520
17
1
975 rounded to 1 significant number is 1,000