In ⊙, chord ⎯⎯⎯⎯⎯⎯⎯⎯⎯ is 8 cm long and is 10 cm from . What is the radius ⊙?

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10