91
9218 9425
63 How did you get this answer? The tens digit must be six. The ones digit must be half that, therefore three.
31.5
that is 42
452, 894. None other that I can think of
16
89 is a prime number between 70 and 100 that has the ones digit one greater than the tens digit.
Probably 73.
The prime number between 20 and 30 whose ones digit is 7 greater than its tens digit is 23. The tens digit is 2, and the ones digit is 3, which is 7 greater than 2. Additionally, 23 is a prime number because it is only divisible by 1 and itself, with no other factors.
The answer depends on what the tens digit is greater than, and what the ones digit does then.
23
9218 9425
There are 45 of them.
Ten.
It is 0.45
12
4