Jewelz Boxz Inc. is a small company that manufactures oak jewellery boxes that are distributed through P20-2A our fine gift stores. The company's income statements for the last four months are shown below June come July August September 205 255 Sales in units 240 295 Sales revenue Cost of goods sold Gross profit Operating expense Salaries and wages expense Insurance expenses Shipping expense Office expenses Total operating expenses Income from operation $24,000 $20,500 $25,500 $29,500 13,200 11,275 14,025 16,225 13,275 10,800 9,225 11,475 3,180 2,960 3,020 2,820 200 200 200 200 1,770 212 1,440 1,230 1,530 179 158 188 5,362 7,913 4,779 $ 6,021 4,408 4,938 $ 6,537 $ 4,817 Instructions (a) Identify each of the company's expenses (including cost of goods sold) as being variable, fixed, or mixed. (b) Calculate the cost per unit for each of the variable expenses. (c) Using the high-low method, determine the variable cost per unit and the fixed cost component for each of the mixed costs. (d) The manager expects to sell 320 jewellery boxes in October. Using the cost information determined above, nrepare a CVP income statement up to income from operations for October. (Show expense items individualy)