8+5+15+12+10= 50 / 5 = 10
The key here is to not worry too much and just follow PEMDAS.
Here we have the expression
. Following PEMDAS, we complete the expression inside the parentheses first, or
. This gives us
or just 
Hope this helps.
Answer:
D 99.387%
Step-by-step explanation:
100,000 - 613 = 99,387
99387 / 100,000 is the chance