Answer:
D) output increases from 200 to 300 units
Step-by-step explanation:
The marginal cost is the slope of the cost curve. You can see from a graph that it is a minimum between 200 and 300 units.
112
Take away 2345 from 2233
k=1
5-k+12= 16
5-k= 16-12
5-k= 4
-k=4-5
-k= -1
so, k=1