The term service economy is used to describe the trend in which business have shifted from primary production in manufacturing to see more service than can somebody tell me if that's true or false

Suppose that two countries, britain and the u.s. produce just one good - beef. suppose that the price of beef in the u.s. is $2.80 per pound, and in britain it is £3.70 per pound. according to ppp theory, what should the $/£ spot exchange rate be? suppose the price of beef is expected to rise to $3.10 in the u.s. and to £4.65 in britain. what should be the one year forward $/£ exchange rate?