Answer:
b
Step-by-step explanation:
BD=10 because it is symmetrical to AD.
Answer: .123
Step-by-step explanation: use random variable e-s which will follow a normal distribution with a mean of 70-60=10 and SD= sq root of 25+49. P(e-s<0)=.123
About eight pounds.
You divide 20 by 5, which is four. You then multiply 4 by the amount of pounds (2).
Hope that helps