it would be D i hope this helps
7/25, 6/25, and 11/50. Looks like they are already in order, or you meant to do that...
If the question meant f(x)=2^(x) -3 then the answer should be 1 over 4 or 1/4
So,
Since this is independent probability, the probability of the event above occurring is:

First, the probability of landing on heads.

Now, the probability of rolling an even number.
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Plug it into the equation.

The correct option is C.