Charlie said, "the opposite of 3 is -3. the opposite of 3/4 is -3/4. i think the opposite of a number is always negative." charlie's claim is not true. explain why, and give an example of a number whose opposite is not a negative

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.