Is the address 7b invalid regarding cell references? I just need it for a test
Valid/not valid

It is not valid

Explanation:

I'll assume the question relates to cell referencing in Microsoft Excel.

To reference a cell in Excel, we make use of the following steps:

7b implies that, the row number first, followed by the column name; this doesn't follow the naming convention of cells.

Hence, 7b is invalid.

well you could find somebody who doesn't want theirs and ask for it or possibly trick a dealer into giving it to you for free.

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).