What is the perimeter of a triangle with sides of lengths 5, 8, & x? 13 + x 40 + x 40x 21

Write a corresponding real world problem to represent 2x - 125=400

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

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)