120+x+16+x=180
2x+ 136=180
2x=44
X= 22
<B= 22
Answer:
Step-by-step explanation:
The probability that Andrew has heart disease is 0.9. Andrew takes a test for the disease that has an accuracy rate of 75%. What is the probability that Andrew has heart disease and the test accurately predicts it?
Answer: The probability that Andrew has heart disease 
Also we know that the accuracy rate of test
or 
The given two events are independent.
Therefore, the probability that Andrew has heart disease and the test accurately predicts it 
Answer:
?
Step-by-step explanation:
.465
i hope im right and
i hope i helped.