If a product sells for $10, variable costs are $6 and fixed costs are $160,000, what would total sales have to be in order to break-even?If unit sales prices are $28 and variable costs are $18 per unit, how many units would have to be sold to break-even if fixed costs equal $20,000?If the unit sales price is $48 and variable costs are $45, how many units have to be sold to earn a profit of $3,600 if fixed costs equal $36,000?If the unit sales price is $15, variable costs are $6 per unit and fixed costs are $20,000 what is the contribution ratio per unit?