Please help thank you

To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

The side of a square is 3 and 5/2 inches