What does que clase tienes por la tarde mean in English?

here's all i can help with---- "At what hour ______ the class of English" i dont know what "tienes" means

The verb "tener" means "to have" in Spanish... ("tienes" is the second person of singular from present simple, you have) so your sentence would be something like that:

at what time is your english class

But I'm not sure about this "at"... so I propose you av alternative sentence:

What time does your English class start?

a que hora tienes la clase da ingles mean

at what time is your english class