Write 3 ways to write 769 to make the number in either +×÷-

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∣∣

Somone me i want to know what 18 hours out of 24 hours in a fraction

Could someone with number 1 and 2