Can ya give me the answers to these 3 questions?

i need help with this probs. it says
Sulfuric acid, a highly corrosive substance, is used in the manufacture of dyes, fertilizer, and medicine. Sulfuric acid is also used by artists for metal etching and in aquatints. H2SO4(pretend 2 is a sub)(pretend 4 is a sub) is the molecular formula for this substance. S stands for sulfur atom. Use this information to answer each question.
1.How many atoms of sulfur, hydrogen, and oxygen are in one sulfuric acid molecule?
2.How many atoms of sulfur would it take to combine with 200 atoms of hydrogen? How many atoms of oxygen would it take to combine with 200 atoms of hydrogen?
3.If 500atoms of sulfur, 400 atoms of hydrogen, and 400 atoms of oxygen are combined, how many sulfuric acid molecules could be formed?