Create a table of values and graph the exponential functions?

Given:

1. y= 1.5^x

2. y= 1.25^x

3. y= 1.1^x

4. y= 1.09^x

I know how to create the table and graph them but it is confusing me because the given values are decimals. I could answer them if they were fractions but I do not know what the heck to do with these decimal values.