I need the explain with these question

30. Ryan Enterprises had sales amounting to $350,000, 40% of which was for variable costs with a profit amounting to $20,000. If sales increase by 40%, profit will increase by

1. 40%
2. 120%
3. 240%
4. 300%
5. 360%

31. Ryan Enterprises had sales amounting to $350,000, 40% of which was for variable costs with a profit amounting to $20,000. If sales increase by 20%, profit will amount to

1. $36,000
2. $36,000
3. $62,000
4. $66,000
5. none of the above

32. Omid Printing expects its fixed costs to amount to $180,000. The company has an average selling price of $40 a unit with a variable cost of 60% and desired profit of 10% of sales. The companys sales should amount to ___________ to meet its objectives:

1. $500,000
2. $600,000
3. $700,000
4. $800,000
5. $900,000

33. XY Companys product mix includes $720,000 in sale of X and $640,000 in sale of Y. Xs contribution margin is 60% and Ys is 40% of sales. Fixed costs amount to $505,880. Xs sale at breakeven should amount to

1. $640,000
2. $720,000
3. $529,400
4. $470,600
5. None of the above.

34. XY Companys product mix includes $720,000 in sale of X and $640,000 in sale of Y. Xs contribution margin is 60% and Ys is 40% of sales. Fixed costs amount to $505,880. Weighted average contribution margin ratio for Y amounts to

1. .31764
2. .18824
3. .50588
4. .40000
5. None of the above.