How do you form the plural of a spanish noun that ends in a consonant

Ineed with spanish homework. translation of task: 11. fill out with the correct form of estar or hay 12. fill in fill with the verbs hay, estar and ser.

Tito y yo con tío. estoy, nuestra estamos, nuestro estamos, su está, nuestra

8. choose the answer that best completes the sentence. (entregar) el examen. (2 points) a: entregas b: entrega c: entrego d: entregan