If sales are $807,000, variable costs are 68% of sales, and income from operations is $270,000, what is the contribution margin ratio? O a. 649 Ob. 32% c. 36% Od. 68% Variable costs as a percentage of sales for Lemon Inc. are 68%, current sales are $531,000. and fixed costs are $204,000 How much will income from operations change if sales increase by $41,600? Oa. $28,288 increase Ob. $28,288 decrease Oc. $13,312 decrease Od. $13,312 increase Spice Inc.'s unit selling price is $47, unit variable costs are $40, fixed costs are $105,000, and current sales are 9,000 units. How much will income from operations change if sales increase by 5,100 units? Oa. $63,000 increase Ob. $63,000 decrease Oc. $98,700 increase Od. $35,700 increase