PEMDAS is the steps to do Order of operations...
P- parentheses
E- exponents
M- Multiplication
D-Division
A- Addition
S- Subtraction
You do p first e next then either m or d then a or s
Yes, because 10 is greater than 3.
It would be 6 people did not get hurt
20 people, 14 got hurt, so subtract 14 from 20 and you get 6 which would be your answer.
Hope this helped. Have a great day!