Michael is three times as old as margaret, and in 6 years he will be twice as old as her. how old was michael when margaret was born?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

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∣∣

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