Which system of equations represents the situation described below. Tyler is 3 years older than his brother, David. Two years ago, Tyler was 4 times as old as David. (Let t represent Tyler's age and d represent David's age.)

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

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

Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125