Given the following information, answer the following questions:

BioTec's fixed cost and breakeven in sales are $30,000 and $75,000, respectively.

What is BioTec's contribution margin ratio?

30%

40%

20%

60%

What is the variable cost if the sale price per unit is $40?

$8.00

$24.00

$40.00

$16.00

What are the sales needed to obtain earnings before tax of $6,000?

$120,000

$ 90,000

$ 60,000

$180,000