Replace the informal words in these sentences with more formal words.

1. (formal email) I should like to enquire about the cost of ads advertisements on your website.
2. (exam essay) The Internet and telly are probably the biggest influences on young people today.
    
3. (recipe in a cookery book) Next, slice the spuds and place them on top of the meat.
    
4. (exam essay) Papers face stiff competition these days from TV and internet news.
    
5. (formal university publicity) The Faculty offers courses in vet science. Laboratory facilities are available 24 hours a day.