Uncle Derek owns a small cattle ranch with 50 cows as of January 1st. To expand his business, he brings in 20 bulls to increase the population. In the course of the year, 10 calves were born, 2 died and 5 had to be taken out to be treated for illness. Using the UAE concept, you just learnt, compute the final number of cattle at the end of the year. Identify all the terms (Input, Output, Final, Initial, Generation and Consumption) [30]

When the two countries did not specialize, the total production of jeans was 23 million pairs per month, and the total production of corn was 68 million bushels per month. because of specialization, the total production of jeans has increased by million pairs per month, and the total production of corn has increased by million bushels per month. because the two countries produce more jeans and more corn under specialization, each country is able to gain from trade?