Final answer:
In the preterite tense, the verb 'aprender' is conjugated as 'aprendieron' when referring to the subject Noé y Jairo.
Step-by-step explanation:
In the preterite tense, the correct conjugation for the verb aprender when referring to the subject Noé y Jairo is aprendieron. This is because Noé y Jairo is a third-person plural subject. When conjugating regular -er/-ir verbs in the preterite tense, you add the corresponding ending to the verb stem. In this case, the verb stem is aprend- and the third-person plural ending for -er/-ir verbs in the preterite is -ieron.
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