Final answer:
To break even on the annual fee, you would need to spend $450 at BJ's.
Step-by-step explanation:
To calculate how much you need to spend at BJ's in order to break even on the annual fee, you can set up an equation. Let x be the amount you spend at BJ's.
According to the problem, you will save 10% on your BJ purchases compared to your current stores.
So, the amount saved is 0.10x. The equation can be written as:
0.10x = $45
To find x, you divide both sides of the equation by 0.10:
x = $450
Therefore, you would need to spend $450 at BJ's in order to break even on the annual fee.