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Question 3 (7 points) You will systematically detail the steps of your calculations. 1) On an invoice sent to its customer, a company indicates an amount including all taxes of 100,000. Knowing that the VAT rate is 20%, what is the amount excluding VAT? (1 point) 2) A country's GDP increased by 5% in the lst year, then increased by 4% in the 2nd year and decreased by 10% in the 3rd year. What is its overall growth rate between the lst and 3rd year? (1 point) 3) A bank account with an amount of 50,000 is remunerated at 4% interest for 10 years. What is the final value of this investment? (2 points) 4) A company produces the same good in different countries but with a different cost. (3 points) What is the percentage of UK production over the total production? If the quantities produced in France increase to 12,000, then what is their growth rate? What is the weighted average unit cost