P(A) = 0.993 is the probability of event A
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P(A) is the probability of not A (note that I am trying to place a bar over A. I hope you can see it, else it is because the editor did not show it as I intended)
Then, use the fact that the probability of A plus the probability not A is equal to 1:
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=> P(A) + P(A) = 1
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=> P(A) = 1 - P(A) = 1 - 0.993 = 0.007
So, the answers are:
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1) P(A) = 0.07
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2) Yes, A is unlikely because its probability is very low.
For this case we have the following equation:

We must clear the variable "x":
We multiply by 2 on both sides of the equation:

We divide by h on both sides of the equation:

We subtract "a" on both sides of the equation:
Answer:
This is the graph of 1/x moved 4 units to the left
so its f(x) = 1 / (x + 4)
C
Answer:
not 100% but i think x may be 23.5
Step-by-step explanation: