i am a number on the hundreds chart. the sum of my digits is 9.my tens digit is 4. what number am i?

41, 42, 43, 44, 45, 46, 47, 48, 49

What do you think?

45

Yes.

To find the number that meets these conditions, we know that the tens digit is 4. Since the sum of the digits is 9, and the tens digit is already 4, we can conclude that the ones digit must be 5. Therefore, the number you are is 45.