justin had $49 before spending y dollars on jeans. How much money remains

Without knowing the cost of the Jeans, the question cannot be answered.

To find out how much money remains after spending y dollars on jeans, you need to subtract the amount spent from the initial amount Justin had.

Using the given information, we know that Justin had $49 before spending y dollars on jeans.

Therefore, the amount of money remaining can be calculated as:

Remaining amount = Initial amount - Amount spent

In this case, that would be:

Remaining amount = $49 - y

So, the amount of money remains after spending y dollars on jeans would be $49 - y.