Answer:

Step-by-step explanation:
Given



Required
Find P(B)
In probability, we have:

Substitute values

Collect Like Terms


Answer:
[(3*8)+2]+6-2
PEMDAS
There are parentheses so solve what is in them
3*8=24
[24+2]
26+6-2
Do the addition
32-2
30 is your answer
30 steps
Answer: Concealment of a particular group from one or more individuals
Step-by-step explanation:
Blinding is a term used to conceal a particular group from one or more individuals who are involved a clinical study. Blinding is used in this study to evaluate the placebos. This was important in this study because the treatment being done by echinacea was no being effective. So in order to gain good results and to see the actual results, blinding was done.
Answer:
63
Step-by-step explanation:
88 - 25 = 63 did it on paper
Answer:
If you really meant that the number of dogs is 12 greater than 3 times the number of cats then:
3 cats
Step-by-step explanation:
21= number of dogs
c = number of cats
21 = 12 + (3c)
3c = 9
c = 3