Answer: 
Step-by-step explanation:
Number of persons said it is legal to text while driving = 8
Number of persons said it is illegal to text while driving = 804
Total persons sampled = 804+8 = 812
Since probability =
The probability of randomly selecting someone who believes it should be legal to text while driving = 
Required probability = 
Answer:
Step-by-step explanation:
10h+15=65 subtract 15 from each side
10h=50, divide each side by 10
h=5
He was at the fair for 5 hours