200 of them are men. 2/3=200/300. 75 are women. 1/4 is equal to 75/300. We can determine the rest by adding the men and women. 200+75=275. 300-275=25. 25 of the passengers are children.
The slope would be -65 and this would indicate the the car is going 65 miles per hour, as it is being subtracted from the distance. Your answer would be C