Final answer:
To find the actual distance from Harper's home to his current location, we can use ratios and proportions to determine the scale of the map and then find the actual distance for the given map distance.
Step-by-step explanation:
To find the actual distance from Harper's home to his current location, we can use the concept of ratios and proportions. First, we need to determine the scale of the map by comparing the distance on the map to the actual distance. In this case, 3/4 inch on the map represents 60 yards. So, 1 inch on the map represents 80 yards (since 3/4 inch is 3/4 of 80). Then, we can use this information to find the actual distance for the given map distance of 3 inches: 3 inches on the map represents 3 * 80 = 240 yards.