QUESTION 5 of 10: Preparing a budget is: a) An ongoing process
b) Something you only have to do once in your lifetime
c) Not an effective way to save money
d) A method for calculating take-home pay

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?