Which of these numbers are rational?

Which one ? is the answer and how to find this answer

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.