Sally and molly are 12 miles away from each other. sally runs 5 mph towards molly, and molly walks 3 mph towards sally. how long will it take them to meet each other

Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles

Don't know how to find x given these segment lengths

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'