Length of a high way can be measured in which unit

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

What is the y-intercept of the line given by the equation

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319