Answer:
B is correct because there cannot be negative people in a cafeteria.
Step-by-step explanation:
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Answer:
B
Step-by-step explanation:
If the probability of event "A" is 'p', then the probability of the event "not A" is
P(not A) = 1 - P(A) = 1 - p
For p=0.5, this is ...
P(not A) = 1 -0.5 = 0.5 . . . . . matches choice B
When you multiply powers with the same base, you sum the exponents:

So, in this case, you have

Answer:
y=x+9
Step-by-step explanation:
Twice the number n will be expressed as 2n. So, that will be in our final answer. In order to decrease the number by 6, we will subtract 6. So there will be a - 6 in our final answer. Together, this is 2n - 6, and that is the same as the second option. So, the second option is the correct one.