dollar : hryvnia = 1:25
$ 15 = 375 hryvnia

1 loaf of rye bread costs 10 hryvnia. 1 loaf of white bread costs 6 hryvnia.
1 liter of milk costs 10 hryvnia.
1 kilogram of beef costs 60 hryvnia.
How many letters you can write per month? How many products you can buy for your money?

You pay $ 15 for 1 letter on the website. You can pay $ 15 for 1 month on this website. How many letters can you write for one month?
The site has a video. The site does not block information. You can read and see. How much can you save if you use this site?