520.4681 rounded to the nearest thousandth

What is the square root of 45? (step by step working plz)

How many solutions does the nonlinear system of equations graphed bellow have?

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.