If $725x + 727y = 1500$ and $729x+ 731y = 1508$, what is the value of $x - y$ ?

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?