Number 4it would be greatly : )

5x+4x-18=90

9x=108

x=12

5*12=60

Measure of angle FEG is 60

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.