1. The problem asks for the probability of picking a card with an even number from the given set of cards. 2. The numbers on the cards are: 7, 11, 12, 13, 14, 18, 21, 23, 27, and 29. 3. First, identify the even numbers in the set. Even numbers are divisible by 2 without a remainder. 4. The even numbers here are 12, 14, and 18. 5. Count the total number of cards: there are 10 cards. 6. Count the number of even cards: there are 3 even cards. 7. The probability formula is: $$\text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$$ 8. Substitute the values: $$\text{Probability} = \frac{3}{10}$$ 9. Therefore, the probability of picking a card with an even number is $\frac{3}{10}$ or 0.3.