Instruction
1
Today 1 us dollar (USD) = 29,2859 rubles.

Suppose you need to transfer $ 15 in rubles.

Of course, it is more convenient to use a calculator.

15 multiplied by 29,2859 received 439,2885, i.e., mathematically it looks like: 15 * 29,2859 = 439,2885 (rubles).