Just Checking if my answers are correct.

For Old Senile Professor Mullen's Bittersweet Candy Company, at a sales level of 5,000 units, sales is $75,000, variable expenses total $40,000, and fixed expenses are $21,000. What is the contribution margin per unit (Unit CM)? $2.80 $7.00 $8.00 $15.00 Old Professor Mullen Company's cost of goods sold is $420,000 variable and $240,000 fixed. The company's selling and administrative expenses are $300,000 variable and $360,000 fixed. If the company's sales is $1, 680,000, what is its contribution margin (CM)? $360,000 $960,000 $1, 020,000 $1, 080,000 For Brilliant Professor Mullen's Textbook Company, sales is $500,000, variable expenses are $310,000, and fixed expenses are $140,000. The Company's contribution margin ratio is 10%. 28%. 38%. 62%. Genius Professor Mullen Corp reported sales of $2,000,000 last year (100,000 units at $20 each), when the break-even point was 80,000 units. The Margin of Safety Ratio (MS %) is 20%. 25%. 80%. 120%. Lao Shu Bruce Company sells 2,000 units of Product A annually, and 3,000 units of Product annually The Sales Mix % based on Total Units for Product A is 40%. 60%. 67%. cannot determine from information given