please answer all 4 questions correctly! thanks

If y = $5,250 + $3.75X, then what will total fixed costs be at a level of 3,000 units? Multiple Choice $6,050 $16,500 $11,250 $5,250 Purple Corporation estimated manufacturing overhead for the year to be $700,000. Allocated manufacturing overhead for the year was calculated as $750,000 for the same year, however, actual manufacturing overhead was $825,000. Was manufacturing overhead over or under allocated and by how much? Multiple Choice O Overallocated by $25,000 . Underallocated by $75,000 Overallocated by $125,000 Underallocated by 550.000 Cobble Corporation produces and sells a single product. Data concerning that product appear below: Percent of Sales 100% Selling price Variable expenses Contribution margin Per Unit $160 48 $112 30% 70% Fixed expenses are $499,000 per month. The company is currently selling 5,000 units per month. The marketing manager would like to cut the selling price by $13 and increase the advertising budget by $33,000 per month. The marketing manager predicts that these two changes would increase monthly sales by 800 units. What should be the overall effect on the company's monthly net operating income of this change? Multiple Choice O decrease of $18,800 decrease of $8,900 O increase of $47,200 O A FF: Next > Per Unit @ Total @ 2.000 Per Unit @ Total @ 4.000 2.000 units units 4,000 units units Variable S24,000 Costs Fixed Costs I T $21.00 Total Costs Based on the above chart, what would be the total variable costs at 4.000 units? Multiple Choice $24,000 $73.500 O $48,000 $333.33 Drou 13 of 40 Next... >