Selecting an entire column using a reference defined in another cell

Hi, all. I'm very new to VBA and Macros so apologies in advance for this simple question.

I need to highlight an entire column to the right of the Active Cell. How far to the right is defined by a number in A2. I had considered using the following:

Range("A1").Offset(0,x).Select
ActiveCell.EntireColumn.Select

whereas x = a number contained in A2.

What do I substitute here for the x, or is there another way?

Many thanks in advance.

Darren