。
She was kind enough to help me with my homework.
Literal
She [topic-は] kindly [emphasis-も] my [possessive-の] homework [object-を] helped-for-me.
When 手伝う takes a task rather than a person as its object, the person being helped is implied: 宿題を手伝う ('help with homework') rather than 私を手伝う ('help me'). 宿題 (しゅくだい, 'homework') is the standard word for school assignments to be completed at home.