Justin and David played Valentine Victory at the arcade. Justin scored thirty-nine thousand, eight hundred ten points. David scored twenty-three thousand, two hundred points. How many points did they score in all?

63,010

Step-by-step explanation:

Unfortunately though, we are not given with the dimensions of the perfect triangle and perfect rectangle which would compose Nevada. The square miles that Nevada cover may be calculated by adding the areas of the rectangle and triangle which are calculated by the equations below. 
                      Area of triangle = bh/2
                      Area of rectangle = bh