Hi, can someone check whether this is correct❤plzzz

Money from an allowance or job is known as .

Health insurance protects you if you experience any of the following except: a: if you have to be hospitalized b: if you damage someone's property c: if you need to visit a clinic d: if you can't work because of illness

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?