11. 3-11 By how much would the total contribution margin decrease in August if Phuillips decides to offer its customers a 5% price discount on the seven units 12 3-12 By how much would operating income decrease in August if Phillips decides to offer its customers a 5% price discount on the seven units? 13 3-13 Estimate variable shipping expenses to ship 12 air conditioners if the shippin company reduces the variable cost per unit by 10% for each unit shipped in excess of 10 units. 14. 3-14 Given the facts in part 3-13, estimate total shipping expenses for 12 air conditioners 15 3-15 Given the facts in part 3-13, are variable shipping expenses linear or non- linear? Explain. 11. 3-11 By how much would the total contribution margin decrease in August if Phuillips decides to offer its customers a 5% price discount on the seven units 12 3-12 By how much would operating income decrease in August if Phillips decides to offer its customers a 5% price discount on the seven units? 13 3-13 Estimate variable shipping expenses to ship 12 air conditioners if the shippin company reduces the variable cost per unit by 10% for each unit shipped in excess of 10 units. 14. 3-14 Given the facts in part 3-13, estimate total shipping expenses for 12 air conditioners 15 3-15 Given the facts in part 3-13, are variable shipping expenses linear or non- linear? Explain