Dallas Fencing sells 10 metre sections for $12. The unit variable costs per section are $8.80. Fixed costs total $4,300. Required: show calculations or answer will not be marked. Part marks given for some calculations. What is the contribution margin per section? What is the breakeven point in sections What is the breakeven point in dollars? How many sections must be sold to earn a pretax income of $4,000? What is the margin of safety assuming 1,800 sections are sold