The answer is 1/7 and can be explained mathematically in the picture
Answer:
B
Step-by-step explanation:
Since the slope is going down the slope is negative and since 50 is positive when 0 its positive.
Also to find slope you do y/x
25/100=1/4 and since its a decreasing pattern the slope is -1/4
The top 4 firms have (23 +22 +18 +12)% = 75% of the market.
The 4-firm concentration ratio is 0.75 or 75%.
How much did it cost to rent each paint marker? $10 for each paint marker