Question

You can buy fashionable shoes at a good price.

(Is 'at a good price' an adjective phrase modifying 'shoes'? Or is 'at a good price' an adverbial phrase modifying 'buy'?)

Answer 1

Question 2: Does 'at a good price' mean 'at an expensive price' or 'at a reasonable price' or 'at a low price'?

Answer 2

The phrase "at a good price" is an adverbial phrase modifying "buy."

It means at a reasonable price.