Solve the system of linear equations by substitution:
x+y=27, y=x+9

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. match each division expression with the correct quotient.

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse