What is the scale factor of triangle abc and triangle def​

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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.