Respuesta :
a good reason to go to store a is that you save 30% if you buy three shirts but if you go to store b you can save 25%, which is less, but you can only buy one shirt instead of three which might be too many.
Answer:
It is good to buy from Store A because you can spend $40 ($20 + $20) and get one free. And it is also good to buy from Store B because you can spend $15 ($20 - $5) for each t-shirt.