All of them have the same answer of -8 except the last one.
Answer:the answer is B
Step-by-step explanation:Bisect each of the angles with vertices at their houses
This is a question of probability.
Probability of picking any color= number of tiles with that color/total number of tiles
Total=45+25+30=100
P(red tile)=(45/100)x60=0.45x60=27
P(blue tile)=(25/100)x60=0.25x60=15
P(green tiles)=(30/100)x60=0.3x60=18