Litton Company estimates that the factory overhead for the following year will be $1,250,000. The company has decided that the basis for applying factory overhead should be machine hours, which is estimated to be 40,000 hours. The machine hours for the month of April for all of the jobs were 4,780. If the actual factory overhead totaled $141,800, determine the over- or underapplied amount for the month.

When a company produces and sells x thousand units per week, its total weekly profit is p thousand dollars, where upper p equals startfraction 800 x over 100 plus x squared endfraction . the production level at t weeks from the present is x equals 4 plus 2 t. find the marginal profit, startfraction dp over dx endfraction and the time rate of change of profit, startfraction dp over dt endfraction . how fast (with respect of time) are profits changing when tequals8?