show all work for a and b please

9 Marvin Company has a beginning inventory of 13 sets of paints at a cost of $170 each. During the year, the store purchased 5 sets at $180,7 sets at $2.40, 7 sets at $2.70, and 11 sets at $3.20. By the end of the year 28 sets were sold. a. Calculate the number of paint sets in ending inventory Number of pantsets Shord b. Calculate the cost of ending inventory under UFO, AFO, and the weighted average methods. Round your answers to the nearest cont.) Cost of ending vertory under LIFO Costanding inventory under FIFO Costanding netowy under Weighted Average