1 at what time do you have french. / How often do you have french
We have french on Mondays, Tuesdays and Fridays at ( tu mets l'heure)
2 Which days do you have maths ?
We have maths on Mondays, Thuesdays, Thursdays and Fridays
3 Which moment of the day do you have music?
We have music on Friday afternoons
when and at what time do you have art?
We have art on Mondays at 9 a.m.