How is Earth's magnetic field generated? What evidence do we have that Earth has a magnetic field surrounding the planet?

Excellent inc. had a per-unit conversion cost of $3.00 during april and incurred direct materials cost of $112,000, direct labor costs of $84,000, and manufacturing overhead costs of $50,400 during the month. how many units did it manufacture during the month? a. 18,000 b. 44,800 c. 70,000 d. 30,000

Salvador county issued $25 million of 5% demand bonds for construction of a county maintenance building. the county has no take-out agreement related to the bonds. it estimates that 20% of the bonds would be demanded (called) by the buyers if interest rates increased at least 1%. at year-end rates on comparable debt were 7%. how should these demand bonds be reported in the government-wide financial statements at year-end? a) $25 million in the long-term liability section of the governmental activities column. b) $5 million in the current liability section of the governmental activities column and $20 million in the long-term liabilities section of the governmental activities column. c) $5 million in the governmental activities column and $20 million would be reported in the schedule of changes in long-term debt obligations. d) $25 million in the current liability section of the governmental activities column

If we know that a firm has a net profit margin of 4.6 %, total asset turnover of 0.62, and a financial leverage multiplier of 1.54, what is its roe? what is the advantage to using the dupont system to calculate roe over the direct calculation of earnings available for common stockholders divided by common stock equity?