3 Team Spirit imprints calendars with college and university names. The company has fixed expenses of $1,035,000 each month plus variable expenses of $3.60 per carton of calendars, of the variable expense, 70% is cost of goods sold, while the remaining 30% relates to variable operating expenses. Team Spirit sells each carton of calendars for $10.50. Question 4 (4 points) Use the equation approach to compute the number of cartons of calendars that Team Spirit must sell each month to break even. (4 marks) Question 5 (4 points) Use the contribution margin short cut formula to compute the dollar amount of monthly sales Team Spirit nec in order to earn $285,000 in operating income. (Hint you must calculate contribution margin and contribution ratio first) (4 marks)