What is the value of the expression –x + y when x = 1.2 and y = –10.7?

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

How do you use the elimination method for this question? explain, because i really want to understand!

Find the area of the triangle shown 3 by 6