She ran 52.16 seconds per 400 meters, how fast was she running in meters per hour?

27607.36 meters per hour

Step-by-step explanation:

400/52.16 = 7.66871165644

7.66871165644 meters per second

7.66871165644 × 60 = 460.122699386 meters per minute

460.122699386 * 60 = 27607.3619632 meters per hour

27607.3619632 meters per hour

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2