if possible could i please get help with these questions, please, you will be rated. Thank you

QUESTION 2 Which of the following costs are variable? Cost 1. 2. 3. 4. A. 1 and 4 B. 1 and 2 C. only 1 D. only 2 10,000 Units $100,000 40,000 90,000 50,000 30,000 Units $300,000 240,000 90,000 150,000 QUESTION 6 Sierra Company sells its product for 540. The variable costs are $18 per unit. Fixed costs are $16,000. The company is considering the purchase of an automated machine that will result in a $2 reduction in unit variable costs and an increase of $5,000 in fixed costs. Which of the following is true about the break-even point in units? O A It will increase B. It cannot be determined from the information provided C. It will decrease D. It will remain unchanged QUESTION 14 At the break-even point of 2,000 units, variable costs are $55,000, and fixed costs are $35,000. How much is the selling price per unit? O A $10.00 B. $17.50 OC. 527.50 D. $45.00