The expression 4x/5-2x/3 is equivalent to
a. x/2
b. x/5
c. x/15
d. 2x/15

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.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²