Asap ! first answer and correct answer gets the zoom in to see better

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

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 many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !