Переведите предложения на российский язык, обращая внимание на функции инфинитива. a)

Переведите предложения на русский язык, обращая внимание на функции инфинитива.
a) The purpose of each business process is to offer each customer the right product or service.
b) To obtain a stock exchange listing, a company must have at least 25 per cent of its shares held by public.
c) Efforts to increase the productive capacity of the poorer nations will only be effective if these nations are able to increase their exports.
d) We expect interest rates to rise next week.
e) We have decided not to advertise this position, but to recruit internally.