Answer:
2) Preferimos; repete
Explanation:
Preferimos is plural when you are talking about yourself and someone else and not other people only.
repete means to repeat when it's NOT plural.
Azul
Answer:
3¹⁵
Explanation:
3⁷×3¹⁰×3-² = 3⁷⁺¹⁰⁻² = 3¹⁷⁻² = 3¹⁵