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.
- 6 - (-2)
- (-2) = 2
* two negatives = one positive
-6 + 2 = -4
-4 is your answer
hope this helps
6y^2 + 6y + 2y + 2 = 6y^2 + 8y + 2
The way you do this is basically multiplying the values in the brackets with 6y, and then adding that to the same values multiplied by 2.
Answer: 
Step-by-step explanation:
surface area(SA)= 
= 
= 
= 
s= the length of the side of the cube