How do you say how old are you in french

Any french speakers? i need some . how would i say 'my oldest brother is very tall, interesting, and good at drawinng.' in french? would it be: mon (i don't know the french word for oldest) frère est très grand, intéressant, et bon à dessin. also, how would i say 'my dad is good at his work' in french?

What is the responsibility of the circulatory system

Which method of payment would you most likely use to pay your rent? a.un chèque barré b.une carte de crédit c.une carte de débit d.argent liquide