A map has a scale of 5in.=15 mi. if you measured the distance between 2 cities to be 26in. on the map, how many miles would it actually be

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.

Which will form a composite function?