To represent the situation where Izzy has two more baseball cards than Josh, and given that Josh has 48 baseball cards, you can use the following equation:
\( i = 48 + 2 \)
This simplifies to:
\( i = 50 \)
However, since you're asked for a one-step equation, the correct expression would be:
\( i - 2 = 48 \)
This indicates that if you subtract 2 from Izzy's cards, you arrive at the number of cards Josh has, which is 48.
So, the equation that correctly represents the situation is:
\( i - 2 = 48 \).