99000
700000
20000 times
42
100000
There are infinitely many whole numbers which are less than 20. Start with 19 and go back, beyond 0, to negative infinity.
There are 30 whole numbers that are odd numbers less than 60 which are also positive. Otherwise, there are infinitely many of them.
700000
20000 times
42
100000
There are 17 of them
There are infinitely many whole numbers which are less than 20. Start with 19 and go back, beyond 0, to negative infinity.
19
19
109 whole numbers greater than 9 and less than 999 are multiples of 9
100000
100 (0-99)