Can someone give the answer for the number pattern, i am struggling.

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∣∣

If the value of cos330°is√3/2 then find cos 165°.

How many terms does the polynomial x^2 y^2 have