Can someone please help me answer this I am confused

What is the value of the digit 1 in the number 13?

Pls! does anybody know a shortcut for answering these types of questions in the future?

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.