Turn 21/5 into an improper fraction

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 know? will mark brainliest if correct!

Find the solutions for a triangle with a =16, c =12, and b = 63º