There are 45 of them.
The answer depends on what the tens digit is greater than, and what the ones digit does then.
-3
4
It is 9 times greater.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45 (10,20,21 etc etc)
91
How about: 11, 13, 17, 19 .... etc
Is it only 890 and 891
Composite numbers are integers greater than 1 that can be divided evenly by numbers other than 1 and themselves. In the case of numbers up to 100, the unit's digit refers to the digit in the ones place. The claim that composite numbers up to 100 have 1 as their unit's digit is incorrect, as composite numbers can have any digit in the ones place depending on their factors.
Since cents are only in whole numbers, you look at the digit directly to the right of the ones digit. In this case, it is a 7. Since that is 5 or greater, the ones digit is rounded up. The answer is 16 cents.
23
8 of them.