The number cube has sides labeled from 1 to 6. This means she has 6 total options, so it would be x/6. For a coin, there are only two sides, so it would be 1/2 for both.
From 1-6, there are 3 even numbers. 2,4, and 6. 3/6 would be your answer, but you'd need to simplify it to get 1/2. 1/2 is the probability that she rolls an even number.
For the coin, since there are only two sides, 1/2 would also be your answer.
Hope I could help :)