Answer:
Otieno's age in 4 years: [tex]k+4[/tex]
Kidole's age in 4 years: [tex]k-1[/tex]
Step-by-step explanation:
[tex]k[/tex] = Otieno's age
[tex]k-5[/tex] = Kidole's age
Their ages will increase by 4 years when 4 years pass.
[tex]k+4[/tex] = Otieno's age in 4 years
[tex]k-5+4[/tex] = Kidole's age in 4 years
[tex]k-1[/tex] = Kidole's age in 4 years (after simplifying the expression)
I hope this helps!