4: Jim's accountant insisted that he should use a perpetual inventory system instead of a periodic inventory system and the average cost method for valuating the inventory. Do you agree with this advice (justify your answer)? Would the balance of the inventory at the end of the month be the same? And the net income? (15 points) 5: Jim would like to know a forecast of the number of days to sell the inventory based on the results of the month of February. Explain your calculation and the steps followed. (10 points: 5 for calculation and 5 for explanation) 6. Jim expects that the prices of the merchandises will dramatically decrease in the next future as a result of the Covid 19 crisis. Which method of valuation of the inventory would you thus recommend to Jim? Explain your answer. (5 points)