Can a Honda dealership legally sell a used car with bad or shot struts?

I bought a used 2006 Honda Civic Sedan with 90,000 miles on it a week ago. After buying, I brought the car to my mechanic for an oil change. He informed me the front struts were shot and that they needed to be replaced. I had only had the car 3 days when I found this out. That means the dealership sold me the car with bad front struts and one of them is actually shot. They are claiming that the warranty doesn't cover the repair because it's considered "wear and tear". But does that matter if they sold me the car in that condition? It's not like this happened 2 months down the road, I just bought the car and these problems were there when they sold it to me. Isn't that illegal to not fix it free of charge? No, the car was not bought "as is" either.

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