(24 points) Canine Company produces and sells dog treats for discriminating pet owners. The unit price is S10, unit variable expenses are $7, and total fixed expenses are $3,300. REQUIRED (1) Calculate the contribution margin per unit. (2) Calculate the contribution margin ratio. (3) Calculate the break-even point in units. (4) Calculate the break-even point in dollars (5) Calculate the sales volume, in units, needed to reach a target profit of $4.200