The Question and Answer section for Weep Not, Child is a great resource to ask questions, find answers, and discuss the novel.
A bit of research has returned the fact that the dialect of Gikuyu is used in the novel. I am not sure of the accuracy of this answer.
Nyokabi, his mother, has saved enough to send him to school even though he will not be able to afford lunch.
I'm sorry, this is a short-answer forum, we do not write student essays. Gradesaver, however, does have an excellent article on this very topic. I have provided the direct link below.