On a map’s coordinate grid, Milton City is located at (-4,-3) and McDanielsville is located at(4, -9). How long is a train’s route as the train travels along a straight line from Milton City to McDanielsville?

Anyone know? will mark brainliest if correct!

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?