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Lilit [14]
3 years ago
6

HHEEEEEELLLLPPPPPP ANSWER THIS QUICKLYYYYY

Mathematics
1 answer:
Evgen [1.6K]3 years ago
5 0

Answer:  27

Step-by-step explanation:

a_{1}=6\\a_{2}=a_{n-1}+7=a_{2-1}    +7=a_{1} +7=6+7=13\\a_{3}=a_{n-1}+7=a_{3-1}    +7=a_{2} +7=13+7=20\\a_{4}=a_{n-1}+7=a_{4-1}    +7=a_{3} +7=20+7=27

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