Questions & Answers about Mi alquiler es caro.
Alquiler is a masculine noun meaning rent. You pair it with masculine articles and adjectives:
• el alquiler
• un alquiler caro
Spanish does not combine a definite article with a possessive adjective. Once you have mi (my), you drop el:
• Correct: mi casa, mi coche, mi alquiler
• Incorrect: el mi casa, el mi coche, el mi alquiler