I need help with this

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

Issof claims that the scale factor is 1/2. which statement about his claim is correct

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)