Answer: Cuánto cuesta la chaqueta..
Explanation:
The words are:
1. cuesta 2. la 3. cuánto 4. chaqueta
First, the verb is "cuesta" that comes from "costar", and the modifactor of the verb is "cuánto" (it goes before the verb), now is easy to see that the object is "La chaqueta"
Cuánto cuesta la chaqueta..