Discover Questions

3 cm : 1cm the same as 3 : 100? Can a ray be part of a line in geometry? If I have a line with 3 points, can i say that the middle point and one of the endpoints is a ray? How does proficiency pertain to reading safety precautions for a science lab? 4(2x-3)-3(x-5)=x+7? How come horsepower is a ratio level of measurement?