2-9

Could you clarify what you mean by "2-9"?

• If it's the arithmetic 2 − 9, the result is -7.
• If you mean problems 2 through 9 in a worksheet, please paste those problems or describe the topics and I’ll solve them.
• If you mean the interval from 2 to 9 (e.g., in a graph or integration), tell me the context and I’ll work with that.