Answer:
5,8-dimethyl-7-(2-methylpentyl)tridecane
Step-by-step explanation:
The parent chain has 13 carbons hence name as tridecane.
Numbering started from lower end to give smallest numbering to substituents.
Two methyl groups at 5 and 8.
At 7 position the entire group is named accordingly.
More clear picture is attached.
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