The answer is 750000000000
Answer:
a = 2500mm
b = 5km
c = 2e+7
Step-by-step explanation:
Answer: c.
Step-by-step explanation:
As per given , we have
Total number of residents injured from roller-skating =1,800
Total number of deaths from roller-skating = 90
Formula for Mortality rate :
Then, the proportional mortality ratio (%) due to roller-skating was
=
= 5%
Hence, the correct answer is c.