The sum of two numbers is 18. Their difference is −8. Find the two numbers.

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∣∣

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?